215160442644 has 48 divisors (see below), whose sum is σ = 573903792000. Its totient is φ = 61459132416.

The previous prime is 215160442643. The next prime is 215160442657. The reversal of 215160442644 is 446244061512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215160442643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23812 + ... + 656420.

It is an arithmetic number, because the mean of its divisors is an integer number (11956329000).

Almost surely, 2^215160442644 is an apocalyptic number.

It is an amenable number.

215160442644 is an abundant number, since it is smaller than the sum of its proper divisors (358743349356).

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

215160442644 is a wasteful number, since it uses less digits than its factorization.

215160442644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636672 (or 636670 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 215160442644 in words is "two hundred fifteen billion, one hundred sixty million, four hundred forty-two thousand, six hundred forty-four".