215560051461544 has 16 divisors (see below), whose sum is σ = 404368759720800. Its totient is φ = 107728382202672.

The previous prime is 215560051461509. The next prime is 215560051461631. The reversal of 215560051461544 is 445164150065512.

It is a super-2 number, since 2×215560051461544² (a number of 29 digits) contains 22 as substring.

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, 6455423274 + ... + 6455456665.

It is an arithmetic number, because the mean of its divisors is an integer number (25273047482550).

Almost surely, 2^{215560051461544} is an apocalyptic number.

It is an amenable number.

215560051461544 is a deficient number, since it is larger than the sum of its proper divisors (188808708259256).

215560051461544 is a wasteful number, since it uses less digits than its factorization.

215560051461544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12910882032 (or 12910882028 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 49.

The spelling of 215560051461544 in words is "two hundred fifteen trillion, five hundred sixty billion, fifty-one million, four hundred sixty-one thousand, five hundred forty-four".