660087897700 has 288 divisors, whose sum is σ = 1886879232000. Its totient is φ = 194182272000.

The previous prime is 660087897631. The next prime is 660087897727. The reversal of 660087897700 is 7798780066.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39638976 + ... + 39655624.

It is an arithmetic number, because the mean of its divisors is an integer number (6551664000).

Almost surely, 2^660087897700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660087897700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943439616000).

660087897700 is an abundant number, since it is smaller than the sum of its proper divisors (1226791334300).

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

660087897700 is a wasteful number, since it uses less digits than its factorization.

660087897700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16971 (or 16964 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 660087897700 in words is "six hundred sixty billion, eighty-seven million, eight hundred ninety-seven thousand, seven hundred".