15740551264 has 48 divisors (see below), whose sum is σ = 31724375760. Its totient is φ = 7685429760.

The previous prime is 15740551261. The next prime is 15740551271. The reversal of 15740551264 is 46215504751.

It is a super-2 number, since 2×15740551264² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15740551261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242322 + ... + 300334.

It is an arithmetic number, because the mean of its divisors is an integer number (660924495).

Almost surely, 2^15740551264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15740551264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15862187880).

15740551264 is an abundant number, since it is smaller than the sum of its proper divisors (15983824496).

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

15740551264 is a wasteful number, since it uses less digits than its factorization.

15740551264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58223 (or 58215 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 15740551264 in words is "fifteen billion, seven hundred forty million, five hundred fifty-one thousand, two hundred sixty-four".