660615025122 has 48 divisors (see below), whose sum is σ = 1545114130560. Its totient is φ = 202781009376.

The previous prime is 660615025111. The next prime is 660615025127. The reversal of 660615025122 is 221520516066.

660615025122 is a `hidden beast` number, since 6 + 6 + 0 + 615 + 0 + 25 + 12 + 2 = 666.

It is a super-2 number, since 2×660615025122² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (660615025127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3270858 + ... + 3466949.

It is an arithmetic number, because the mean of its divisors is an integer number (32189877720).

Almost surely, 2^660615025122 is an apocalyptic number.

660615025122 is an abundant number, since it is smaller than the sum of its proper divisors (884499105438).

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

660615025122 is a wasteful number, since it uses less digits than its factorization.

660615025122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738247 (or 6738244 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 660615025122 in words is "six hundred sixty billion, six hundred fifteen million, twenty-five thousand, one hundred twenty-two".