660373672 has 32 divisors (see below), whose sum is σ = 1429686720. Its totient is φ = 280097280.

The previous prime is 660373657. The next prime is 660373673. The reversal of 660373672 is 276373066.

It is not an unprimeable number, because it can be changed into a prime (660373673) 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, 55354 + ... + 66217.

It is an arithmetic number, because the mean of its divisors is an integer number (44677710).

Almost surely, 2^660373672 is an apocalyptic number.

It is an amenable number.

660373672 is an abundant number, since it is smaller than the sum of its proper divisors (769313048).

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

660373672 is a wasteful number, since it uses less digits than its factorization.

660373672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121681 (or 121677 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 40.

The square root of 660373672 is about 25697.7367096793. The cubic root of 660373672 is about 870.8230516545.

The spelling of 660373672 in words is "six hundred sixty million, three hundred seventy-three thousand, six hundred seventy-two".