30644016156 has 72 divisors (see below), whose sum is σ = 83446052144. Its totient is φ = 9425963520.

The previous prime is 30644016149. The next prime is 30644016157. The reversal of 30644016156 is 65161044603.

It is a happy number.

30644016156 is a `hidden beast` number, since 3 + 0 + 6 + 440 + 161 + 56 = 666.

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 30644016156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30644016157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1831380 + ... + 1848036.

Almost surely, 2^30644016156 is an apocalyptic number.

30644016156 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30644016156 is an abundant number, since it is smaller than the sum of its proper divisors (52802035988).

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

30644016156 is a wasteful number, since it uses less digits than its factorization.

30644016156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20611 (or 20606 counting only the distinct ones).

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

The spelling of 30644016156 in words is "thirty billion, six hundred forty-four million, sixteen thousand, one hundred fifty-six".