660288609480 has 64 divisors (see below), whose sum is σ = 2097387354240. Its totient is φ = 165719493632.

The previous prime is 660288609479. The next prime is 660288609527. The reversal of 660288609480 is 84906882066.

It is a self number, because there is not a number n which added to its sum of digits gives 660288609480.

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, 161833404 + ... + 161837483.

It is an arithmetic number, because the mean of its divisors is an integer number (32771677410).

Almost surely, 2^660288609480 is an apocalyptic number.

660288609480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

660288609480 is an abundant number, since it is smaller than the sum of its proper divisors (1437098744760).

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

660288609480 is a wasteful number, since it uses less digits than its factorization.

660288609480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323670918 (or 323670914 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 660288609480 in words is "six hundred sixty billion, two hundred eighty-eight million, six hundred nine thousand, four hundred eighty".