1156566550656 has 64 divisors (see below), whose sum is σ = 3351414448800. Its totient is φ = 350474711040.

The previous prime is 1156566550627. The next prime is 1156566550703. The reversal of 1156566550656 is 6560556656511.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 1156566550596 and 1156566550605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136899961 + ... + 136908408.

Almost surely, 2^{1156566550656} is an apocalyptic number.

1156566550656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1156566550656 is an abundant number, since it is smaller than the sum of its proper divisors (2194847898144).

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

1156566550656 is a wasteful number, since it uses less digits than its factorization.

1156566550656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273808397 (or 273808385 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 1156566550656 in words is "one trillion, one hundred fifty-six billion, five hundred sixty-six million, five hundred fifty thousand, six hundred fifty-six".