660200258664 has 64 divisors (see below), whose sum is σ = 1834123392000. Its totient is φ = 220038698880.

The previous prime is 660200258659. The next prime is 660200258701. The reversal of 660200258664 is 466852002066.

660200258664 is a `hidden beast` number, since 6 + 6 + 0 + 2 + 0 + 0 + 2 + 586 + 64 = 666.

It is a super-3 number, since 3×660200258664³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1539129 + ... + 1920759.

It is an arithmetic number, because the mean of its divisors is an integer number (28658178000).

Almost surely, 2^660200258664 is an apocalyptic number.

It is an amenable number.

660200258664 is an abundant number, since it is smaller than the sum of its proper divisors (1173923133336).

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

660200258664 is a wasteful number, since it uses less digits than its factorization.

660200258664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389655 (or 389645 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

It can be divided in two parts, 6602002 and 58664, that added together give a palindrome (6660666).

The spelling of 660200258664 in words is "six hundred sixty billion, two hundred million, two hundred fifty-eight thousand, six hundred sixty-four".