1166656156056 has 48 divisors (see below), whose sum is σ = 3159827597160. Its totient is φ = 388868912640.

The previous prime is 1166656156049. The next prime is 1166656156139. The reversal of 1166656156056 is 6506516566611.

It is a super-2 number, since 2×1166656156056² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166656155993 and 1166656156011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1431691 + ... + 2093573.

Almost surely, 2^{1166656156056} is an apocalyptic number.

It is an amenable number.

1166656156056 is an abundant number, since it is smaller than the sum of its proper divisors (1993171441104).

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

1166656156056 is a wasteful number, since it uses less digits than its factorization.

1166656156056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686376 (or 686369 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 1166656156056 in words is "one trillion, one hundred sixty-six billion, six hundred fifty-six million, one hundred fifty-six thousand, fifty-six".