1161673758 has 64 divisors (see below), whose sum is σ = 2979025920. Its totient is φ = 328673376.

The previous prime is 1161673753. The next prime is 1161673763. The reversal of 1161673758 is 8573761611.

1161673758 is a `hidden beast` number, since 116 + 167 + 375 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1161673753) and next prime (1161673763).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161673753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24016 + ... + 53852.

It is an arithmetic number, because the mean of its divisors is an integer number (46547280).

Almost surely, 2^1161673758 is an apocalyptic number.

1161673758 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161673758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489512960).

1161673758 is an abundant number, since it is smaller than the sum of its proper divisors (1817352162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161673758 is a wasteful number, since it uses less digits than its factorization.

1161673758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29958 (or 29952 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 1161673758 is about 34083.3354881825. The cubic root of 1161673758 is about 1051.2226899514. Note that the first 3 decimals are identical.

The spelling of 1161673758 in words is "one billion, one hundred sixty-one million, six hundred seventy-three thousand, seven hundred fifty-eight".