660167432000 has 56 divisors (see below), whose sum is σ = 1634904665160. Its totient is φ = 264066969600.

The previous prime is 660167431993. The next prime is 660167432009. The reversal of 660167432000 is 234761066.

It can be written as a sum of positive squares in 4 ways, for example, as 14703017536 + 645464414464 = 121256^2 + 803408^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660167432009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41252465 + ... + 41268464.

Almost surely, 2^660167432000 is an apocalyptic number.

It is an amenable number.

660167432000 is an abundant number, since it is smaller than the sum of its proper divisors (974737233160).

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

660167432000 is an equidigital number, since it uses as much as digits as its factorization.

660167432000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82520956 (or 82520936 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 660167432000 in words is "six hundred sixty billion, one hundred sixty-seven million, four hundred thirty-two thousand".