665164007052 has 96 divisors (see below), whose sum is σ = 1627953937344. Its totient is φ = 211152614400.

The previous prime is 665164006973. The next prime is 665164007063. The reversal of 665164007052 is 250700461566.

It is a junction number, because it is equal to n+sod(n) for n = 665164006995 and 665164007013.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9873402 + ... + 9940542.

It is an arithmetic number, because the mean of its divisors is an integer number (16957853514).

Almost surely, 2^665164007052 is an apocalyptic number.

It is an amenable number.

665164007052 is an abundant number, since it is smaller than the sum of its proper divisors (962789930292).

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

665164007052 is a wasteful number, since it uses less digits than its factorization.

665164007052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67659 (or 67657 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 665164007052 in words is "six hundred sixty-five billion, one hundred sixty-four million, seven thousand, fifty-two".