666302372336776 has 64 divisors (see below), whose sum is σ = 1461153417292800. Its totient is φ = 278887073709888.

The previous prime is 666302372336761. The next prime is 666302372336789. The reversal of 666302372336776 is 677633273203666.

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, 7272751 + ... + 37222273.

It is an arithmetic number, because the mean of its divisors is an integer number (22830522145200).

Almost surely, 2^{666302372336776} is an apocalyptic number.

It is an amenable number.

666302372336776 is an abundant number, since it is smaller than the sum of its proper divisors (794851044956024).

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

666302372336776 is a wasteful number, since it uses less digits than its factorization.

666302372336776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29958818 (or 29958814 counting only the distinct ones).

The product of its (nonzero) digits is 864162432, while the sum is 67.

The spelling of 666302372336776 in words is "six hundred sixty-six trillion, three hundred two billion, three hundred seventy-two million, three hundred thirty-six thousand, seven hundred seventy-six".