1156918806736 has 80 divisors (see below), whose sum is σ = 2832917931648. Its totient is φ = 444572928000.

The previous prime is 1156918806727. The next prime is 1156918806761. The reversal of 1156918806736 is 6376088196511.

It is a super-2 number, since 2×1156918806736² (a number of 25 digits) contains 22 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, 6341965 + ... + 6521836.

Almost surely, 2^{1156918806736} is an apocalyptic number.

1156918806736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1156918806736 is an abundant number, since it is smaller than the sum of its proper divisors (1675999124912).

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

1156918806736 is a wasteful number, since it uses less digits than its factorization.

1156918806736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12863900 (or 12863894 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 1156918806736 in words is "one trillion, one hundred fifty-six billion, nine hundred eighteen million, eight hundred six thousand, seven hundred thirty-six".