1151999160 has 256 divisors, whose sum is σ = 3935554560. Its totient is φ = 267632640.

The previous prime is 1151999141. The next prime is 1151999209. The reversal of 1151999160 is 619991511.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3480195 + ... + 3480525.

It is an arithmetic number, because the mean of its divisors is an integer number (15373260).

Almost surely, 2^1151999160 is an apocalyptic number.

1151999160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151999160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1967777280).

1151999160 is an abundant number, since it is smaller than the sum of its proper divisors (2783555400).

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

1151999160 is a wasteful number, since it uses less digits than its factorization.

1151999160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 42.

The square root of 1151999160 is about 33941.1131225834. The cubic root of 1151999160 is about 1048.2963028892.

The spelling of 1151999160 in words is "one billion, one hundred fifty-one million, nine hundred ninety-nine thousand, one hundred sixty".