215425264560 has 80 divisors (see below), whose sum is σ = 728529085440. Its totient is φ = 52224305920.

The previous prime is 215425264547. The next prime is 215425264567. The reversal of 215425264560 is 65462524512.

It is a happy number.

215425264560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×215425264560² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215425264567) 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, 40797600 + ... + 40802879.

It is an arithmetic number, because the mean of its divisors is an integer number (9106613568).

Almost surely, 2^215425264560 is an apocalyptic number.

215425264560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215425264560 is an abundant number, since it is smaller than the sum of its proper divisors (513103820880).

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

215425264560 is a wasteful number, since it uses less digits than its factorization.

215425264560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81600506 (or 81600500 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 215425264560 in words is "two hundred fifteen billion, four hundred twenty-five million, two hundred sixty-four thousand, five hundred sixty".