15265133680 has 80 divisors (see below), whose sum is σ = 38875101120. Its totient is φ = 5548691456.

The previous prime is 15265133633. The next prime is 15265133683. The reversal of 15265133680 is 8633156251.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15265133683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154084 + ... + 232963.

It is an arithmetic number, because the mean of its divisors is an integer number (485938764).

Almost surely, 2^15265133680 is an apocalyptic number.

15265133680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15265133680 is an abundant number, since it is smaller than the sum of its proper divisors (23609967440).

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

15265133680 is a wasteful number, since it uses less digits than its factorization.

15265133680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387106 (or 387100 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 15265133680 in words is "fifteen billion, two hundred sixty-five million, one hundred thirty-three thousand, six hundred eighty".