2565566116156 has 18 divisors (see below), whose sum is σ = 4576051153352. Its totient is φ = 1258579598640.

The previous prime is 2565566116133. The next prime is 2565566116213. The reversal of 2565566116156 is 6516116655652.

It is a junction number, because it is equal to n+sod(n) for n = 2565566116097 and 2565566116106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114156000 + ... + 114178471.

Almost surely, 2^{2565566116156} is an apocalyptic number.

It is an amenable number.

2565566116156 is a deficient number, since it is larger than the sum of its proper divisors (2010485037196).

2565566116156 is a wasteful number, since it uses less digits than its factorization.

2565566116156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228334581 (or 228334526 counting only the distinct ones).

The product of its digits is 9720000, while the sum is 55.

The spelling of 2565566116156 in words is "two trillion, five hundred sixty-five billion, five hundred sixty-six million, one hundred sixteen thousand, one hundred fifty-six".