1556056116 has 24 divisors (see below), whose sum is σ = 4034219840. Its totient is φ = 518685336.

The previous prime is 1556056081. The next prime is 1556056141. The reversal of 1556056116 is 6116506551.

It is a super-2 number, since 2×1556056116² = 4842621272282010912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 7203856 + ... + 7204071.

Almost surely, 2^1556056116 is an apocalyptic number.

It is an amenable number.

1556056116 is an abundant number, since it is smaller than the sum of its proper divisors (2478163724).

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

1556056116 is a wasteful number, since it uses less digits than its factorization.

1556056116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14407940 (or 14407932 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1556056116 is about 39446.8771387546. The cubic root of 1556056116 is about 1158.7998179271.

The spelling of 1556056116 in words is "one billion, five hundred fifty-six million, fifty-six thousand, one hundred sixteen".