665700542664116 has 12 divisors (see below), whose sum is σ = 1164988860188160. Its totient is φ = 332846582610360.

The previous prime is 665700542664077. The next prime is 665700542664137. The reversal of 665700542664116 is 611466245007566.

It is a super-2 number, since 2×665700542664116² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921774350 + ... + 922496261.

It is an arithmetic number, because the mean of its divisors is an integer number (97082405015680).

Almost surely, 2^{665700542664116} is an apocalyptic number.

It is an amenable number.

665700542664116 is a deficient number, since it is larger than the sum of its proper divisors (499288317524044).

665700542664116 is a wasteful number, since it uses less digits than its factorization.

665700542664116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844360854 (or 1844360852 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 665700542664116 in words is "six hundred sixty-five trillion, seven hundred billion, five hundred forty-two million, six hundred sixty-four thousand, one hundred sixteen".