15420456560 has 40 divisors (see below), whose sum is σ = 37961539056. Its totient is φ = 5805347840.

The previous prime is 15420456529. The next prime is 15420456593. The reversal of 15420456560 is 6565402451.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5667926 + ... + 5670645.

Almost surely, 2^15420456560 is an apocalyptic number.

15420456560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15420456560 is an abundant number, since it is smaller than the sum of its proper divisors (22541082496).

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

15420456560 is a wasteful number, since it uses less digits than its factorization.

15420456560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338601 (or 11338595 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 15420456560 in words is "fifteen billion, four hundred twenty million, four hundred fifty-six thousand, five hundred sixty".