215051668023 has 32 divisors (see below), whose sum is σ = 305102151360. Its totient is φ = 134269470720.

The previous prime is 215051668009. The next prime is 215051668031. The reversal of 215051668023 is 320866150512.

It is not a de Polignac number, because 215051668023 - 2⁹ = 215051667511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215051668033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8511373 + ... + 8536601.

It is an arithmetic number, because the mean of its divisors is an integer number (9534442230).

Almost surely, 2^215051668023 is an apocalyptic number.

215051668023 is a deficient number, since it is larger than the sum of its proper divisors (90050483337).

215051668023 is a wasteful number, since it uses less digits than its factorization.

215051668023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26067.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 215051668023 in words is "two hundred fifteen billion, fifty-one million, six hundred sixty-eight thousand, twenty-three".