15025664072 has 8 divisors (see below), whose sum is σ = 28173120150. Its totient is φ = 7512832032.

The previous prime is 15025664057. The next prime is 15025664077. The reversal of 15025664072 is 27046652051.

It can be written as a sum of positive squares in only one way, i.e., 13426783876 + 1598880196 = 115874^2 + 39986^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (15025664077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 939103997 + ... + 939104012.

Almost surely, 2^15025664072 is an apocalyptic number.

It is an amenable number.

15025664072 is a deficient number, since it is larger than the sum of its proper divisors (13147456078).

15025664072 is a wasteful number, since it uses less digits than its factorization.

15025664072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878208015 (or 1878208011 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 15025664072 in words is "fifteen billion, twenty-five million, six hundred sixty-four thousand, seventy-two".