15025065660 has 72 divisors (see below), whose sum is σ = 49719314736. Its totient is φ = 3642439680.

The previous prime is 15025065659. The next prime is 15025065673. The reversal of 15025065660 is 6656052051.

It is a happy number.

It is a super-2 number, since 2×15025065660² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3792229 + ... + 3796188.

It is an arithmetic number, because the mean of its divisors is an integer number (690546038).

Almost surely, 2^15025065660 is an apocalyptic number.

15025065660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15025065660 is an abundant number, since it is smaller than the sum of its proper divisors (34694249076).

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

15025065660 is a wasteful number, since it uses less digits than its factorization.

15025065660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588443 (or 7588438 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 15025065660 in words is "fifteen billion, twenty-five million, sixty-five thousand, six hundred sixty".