660001253212352 has 56 divisors (see below), whose sum is σ = 1383492491937600. Its totient is φ = 311527465088256.

The previous prime is 660001253212339. The next prime is 660001253212369. The reversal of 660001253212352 is 253212352100066.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958603202 + ... + 959291457.

Almost surely, 2^{660001253212352} is an apocalyptic number.

It is an amenable number.

660001253212352 is an abundant number, since it is smaller than the sum of its proper divisors (723491238725248).

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

660001253212352 is a wasteful number, since it uses less digits than its factorization.

660001253212352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917894973 (or 1917894963 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 660001253212352 in words is "six hundred sixty trillion, one billion, two hundred fifty-three million, two hundred twelve thousand, three hundred fifty-two".