665013655054070 has 16 divisors (see below), whose sum is σ = 1368028090397088. Its totient is φ = 228004681732800.

The previous prime is 665013655054057. The next prime is 665013655054109. The reversal of 665013655054070 is 70450556310566.

It is a super-2 number, since 2×665013655054070² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750097536031 + ... + 4750097536170.

It is an arithmetic number, because the mean of its divisors is an integer number (85501755649818).

Almost surely, 2^{665013655054070} is an apocalyptic number.

665013655054070 is an abundant number, since it is smaller than the sum of its proper divisors (703014435343018).

665013655054070 is a wasteful number, since it uses less digits than its factorization.

665013655054070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500195072215.

The product of its (nonzero) digits is 11340000, while the sum is 53.

The spelling of 665013655054070 in words is "six hundred sixty-five trillion, thirteen billion, six hundred fifty-five million, fifty-four thousand, seventy".