15228685680 has 160 divisors (see below), whose sum is σ = 53831179584. Its totient is φ = 3528081408.

The previous prime is 15228685657. The next prime is 15228685711. The reversal of 15228685680 is 8658682251.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90519 + ... + 196598.

Almost surely, 2^15228685680 is an apocalyptic number.

15228685680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15228685680 is an abundant number, since it is smaller than the sum of its proper divisors (38602493904).

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

15228685680 is a wasteful number, since it uses less digits than its factorization.

15228685680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287163 (or 287157 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 15228685680 in words is "fifteen billion, two hundred twenty-eight million, six hundred eighty-five thousand, six hundred eighty".