30611644056 has 48 divisors (see below), whose sum is σ = 94750328400. Its totient is φ = 8746183872.

The previous prime is 30611644033. The next prime is 30611644067. The reversal of 30611644056 is 65044611603.

It is a happy number.

30611644056 is a `hidden beast` number, since 3 + 0 + 6 + 1 + 1 + 644 + 0 + 5 + 6 = 666.

It is a super-2 number, since 2×30611644056² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30611644056.

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, 30368191 + ... + 30369198.

It is an arithmetic number, because the mean of its divisors is an integer number (1973965175).

Almost surely, 2^30611644056 is an apocalyptic number.

30611644056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30611644056 is an abundant number, since it is smaller than the sum of its proper divisors (64138684344).

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

30611644056 is a wasteful number, since it uses less digits than its factorization.

30611644056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60737408 (or 60737401 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 30611644056 in words is "thirty billion, six hundred eleven million, six hundred forty-four thousand, fifty-six".