215603495115464 has 32 divisors (see below), whose sum is σ = 412921780128000. Its totient is φ = 105491731787520.

The previous prime is 215603495115431. The next prime is 215603495115467. The reversal of 215603495115464 is 464511594306512.

It is not an unprimeable number, because it can be changed into a prime (215603495115467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42032732 + ... + 46882379.

It is an arithmetic number, because the mean of its divisors is an integer number (12903805629000).

Almost surely, 2^{215603495115464} is an apocalyptic number.

It is an amenable number.

215603495115464 is a deficient number, since it is larger than the sum of its proper divisors (197318285012536).

215603495115464 is a wasteful number, since it uses less digits than its factorization.

215603495115464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88921613 (or 88921609 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 215603495115464 in words is "two hundred fifteen trillion, six hundred three billion, four hundred ninety-five million, one hundred fifteen thousand, four hundred sixty-four".