665162053216 has 24 divisors (see below), whose sum is σ = 1309596913800. Its totient is φ = 332566011648.

The previous prime is 665162053211. The next prime is 665162053247. The reversal of 665162053216 is 612350261566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665162053211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268500 + ... + 1184236.

It is an arithmetic number, because the mean of its divisors is an integer number (54566538075).

Almost surely, 2^665162053216 is an apocalyptic number.

It is an amenable number.

665162053216 is a deficient number, since it is larger than the sum of its proper divisors (644434860584).

665162053216 is a wasteful number, since it uses less digits than its factorization.

665162053216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938446 (or 938438 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 665162053216 in words is "six hundred sixty-five billion, one hundred sixty-two million, fifty-three thousand, two hundred sixteen".