30165517172 has 12 divisors (see below), whose sum is σ = 60331034400. Its totient is φ = 12928078776.

The previous prime is 30165517171. The next prime is 30165517201. The reversal of 30165517172 is 27171556103.

30165517172 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30165517171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538669922 + ... + 538669977.

It is an arithmetic number, because the mean of its divisors is an integer number (5027586200).

Almost surely, 2^30165517172 is an apocalyptic number.

It is an amenable number.

30165517172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30165517172 is a wasteful number, since it uses less digits than its factorization.

30165517172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077339910 (or 1077339908 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 30165517172 in words is "thirty billion, one hundred sixty-five million, five hundred seventeen thousand, one hundred seventy-two".