215174338680 has 128 divisors (see below), whose sum is σ = 781137146880. Its totient is φ = 46289602560.

The previous prime is 215174338633. The next prime is 215174338733. The reversal of 215174338680 is 86833471512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7519836 + ... + 7548395.

It is an arithmetic number, because the mean of its divisors is an integer number (6102633960).

Almost surely, 2^215174338680 is an apocalyptic number.

215174338680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215174338680 is an abundant number, since it is smaller than the sum of its proper divisors (565962808200).

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

215174338680 is a wasteful number, since it uses less digits than its factorization.

215174338680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15068269 (or 15068265 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 215174338680 in words is "two hundred fifteen billion, one hundred seventy-four million, three hundred thirty-eight thousand, six hundred eighty".