1156740816 has 80 divisors (see below), whose sum is σ = 3725618688. Its totient is φ = 300451200.

The previous prime is 1156740803. The next prime is 1156740839. The reversal of 1156740816 is 6180476511.

It is a super-3 number, since 3×1156740816³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152790 + ... + 160181.

Almost surely, 2^1156740816 is an apocalyptic number.

1156740816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1156740816 is an abundant number, since it is smaller than the sum of its proper divisors (2568877872).

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

1156740816 is a wasteful number, since it uses less digits than its factorization.

1156740816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313000 (or 312994 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1156740816 is about 34010.8926081042. The cubic root of 1156740816 is about 1049.7326049263.

The spelling of 1156740816 in words is "one billion, one hundred fifty-six million, seven hundred forty thousand, eight hundred sixteen".