215670715220075 has 24 divisors (see below), whose sum is σ = 271514046274560. Its totient is φ = 169908449911200.

The previous prime is 215670715220047. The next prime is 215670715220131. The reversal of 215670715220075 is 570022517076512.

It is not a de Polignac number, because 215670715220075 - 2¹⁰ = 215670715219051 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69199739 + ... + 72249188.

It is an arithmetic number, because the mean of its divisors is an integer number (11313085261440).

Almost surely, 2^{215670715220075} is an apocalyptic number.

215670715220075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

215670715220075 is a deficient number, since it is larger than the sum of its proper divisors (55843331054485).

215670715220075 is a wasteful number, since it uses less digits than its factorization.

215670715220075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141449867 (or 141449862 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 50.

The spelling of 215670715220075 in words is "two hundred fifteen trillion, six hundred seventy billion, seven hundred fifteen million, two hundred twenty thousand, seventy-five".