1165948742358 has 80 divisors (see below), whose sum is σ = 2757975990000. Its totient is φ = 367139003328.

The previous prime is 1165948742311. The next prime is 1165948742359. The reversal of 1165948742358 is 8532478495611.

It is a happy number.

1165948742358 is a `hidden beast` number, since 1 + 1 + 6 + 594 + 8 + 7 + 4 + 2 + 35 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1165948742295 and 1165948742304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165948742359) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 531528 + ... + 1616916.

It is an arithmetic number, because the mean of its divisors is an integer number (34474699875).

Almost surely, 2^{1165948742358} is an apocalyptic number.

1165948742358 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 1165948742358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378987995000).

1165948742358 is an abundant number, since it is smaller than the sum of its proper divisors (1592027247642).

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

1165948742358 is a wasteful number, since it uses less digits than its factorization.

1165948742358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085771 (or 1085762 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 1165948742358 in words is "one trillion, one hundred sixty-five billion, nine hundred forty-eight million, seven hundred forty-two thousand, three hundred fifty-eight".