665357484012 has 48 divisors (see below), whose sum is σ = 1759919938560. Its totient is φ = 193950358848.

The previous prime is 665357483981. The next prime is 665357484047. The reversal of 665357484012 is 210484753566.

It is a super-2 number, since 2×665357484012² (a number of 24 digits) contains 22 as substring.

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, 112236828 + ... + 112242755.

It is an arithmetic number, because the mean of its divisors is an integer number (36664998720).

Almost surely, 2^665357484012 is an apocalyptic number.

It is an amenable number.

665357484012 is an abundant number, since it is smaller than the sum of its proper divisors (1094562454548).

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

665357484012 is a wasteful number, since it uses less digits than its factorization.

665357484012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224479622 (or 224479620 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 665357484012 in words is "six hundred sixty-five billion, three hundred fifty-seven million, four hundred eighty-four thousand, twelve".