1556160616116 has 18 divisors (see below), whose sum is σ = 3933628224162. Its totient is φ = 518720205360.

The previous prime is 1556160616111. The next prime is 1556160616189. The reversal of 1556160616116 is 6116160616551.

1556160616116 is a `hidden beast` number, since 1 + 5 + 5 + 6 + 16 + 0 + 616 + 1 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 781049412900 + 775111203216 = 883770^2 + 880404^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556160616111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21613341855 + ... + 21613341926.

Almost surely, 2^{1556160616116} is an apocalyptic number.

It is an amenable number.

1556160616116 is an abundant number, since it is smaller than the sum of its proper divisors (2377467608046).

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

1556160616116 is a wasteful number, since it uses less digits than its factorization.

1556160616116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43226683791 (or 43226683786 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 1556160616116 in words is "one trillion, five hundred fifty-six billion, one hundred sixty million, six hundred sixteen thousand, one hundred sixteen".