660007072008 has 96 divisors (see below), whose sum is σ = 1857234015000. Its totient is φ = 211488334848.

The previous prime is 660007071967. The next prime is 660007072027. The reversal of 660007072008 is 800270700066.

It can be written as a sum of positive squares in 4 ways, for example, as 646676522244 + 13330549764 = 804162^2 + 115458^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212013 + ... + 1168316.

Almost surely, 2^660007072008 is an apocalyptic number.

It is an amenable number.

660007072008 is an abundant number, since it is smaller than the sum of its proper divisors (1197226942992).

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

660007072008 is a wasteful number, since it uses less digits than its factorization.

660007072008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380599 (or 1380592 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 660007072008 in words is "six hundred sixty billion, seven million, seventy-two thousand, eight".