15643097560 has 16 divisors (see below), whose sum is σ = 35196969600. Its totient is φ = 6257239008.

The previous prime is 15643097557. The next prime is 15643097579. The reversal of 15643097560 is 6579034651.

It is a self number, because there is not a number n which added to its sum of digits gives 15643097560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195538680 + ... + 195538759.

It is an arithmetic number, because the mean of its divisors is an integer number (2199810600).

Almost surely, 2^15643097560 is an apocalyptic number.

15643097560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15643097560 is an abundant number, since it is smaller than the sum of its proper divisors (19553872040).

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

15643097560 is a wasteful number, since it uses less digits than its factorization.

15643097560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391077450 (or 391077446 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 15643097560 in words is "fifteen billion, six hundred forty-three million, ninety-seven thousand, five hundred sixty".