660121560996 has 48 divisors (see below), whose sum is σ = 1548336968640. Its totient is φ = 218890385280.

The previous prime is 660121560983. The next prime is 660121561031. The reversal of 660121560996 is 699065121066.

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, 19318086 + ... + 19352226.

It is an arithmetic number, because the mean of its divisors is an integer number (32257020180).

Almost surely, 2^660121560996 is an apocalyptic number.

It is an amenable number.

660121560996 is an abundant number, since it is smaller than the sum of its proper divisors (888215407644).

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

660121560996 is a wasteful number, since it uses less digits than its factorization.

660121560996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42524 (or 42522 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 51.

The spelling of 660121560996 in words is "six hundred sixty billion, one hundred twenty-one million, five hundred sixty thousand, nine hundred ninety-six".