1616000556 has 24 divisors (see below), whose sum is σ = 3771356400. Its totient is φ = 538568512.

The previous prime is 1616000543. The next prime is 1616000623. The reversal of 1616000556 is 6550006161.

It is a super-2 number, since 2×1616000556² = 5222915593984618272, which contains 22 as substring.

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, 90670 + ... + 107018.

It is an arithmetic number, because the mean of its divisors is an integer number (157139850).

Almost surely, 2^1616000556 is an apocalyptic number.

It is an amenable number.

1616000556 is an abundant number, since it is smaller than the sum of its proper divisors (2155355844).

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

1616000556 is a wasteful number, since it uses less digits than its factorization.

1616000556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24593 (or 24591 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1616000556 is about 40199.5093999914. The cubic root of 1616000556 is about 1173.4929962723.

The spelling of 1616000556 in words is "one billion, six hundred sixteen million, five hundred fifty-six", and thus it is an aban number.