666704065046 has 16 divisors (see below), whose sum is σ = 1072552719600. Its totient is φ = 309848561568.

The previous prime is 666704064979. The next prime is 666704065061. The reversal of 666704065046 is 640560407666.

It is a junction number, because it is equal to n+sod(n) for n = 666704064985 and 666704065003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165515381 + ... + 165519408.

It is an arithmetic number, because the mean of its divisors is an integer number (67034544975).

Almost surely, 2^666704065046 is an apocalyptic number.

666704065046 is a deficient number, since it is larger than the sum of its proper divisors (405848654554).

666704065046 is a wasteful number, since it uses less digits than its factorization.

666704065046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331034863.

The product of its (nonzero) digits is 4354560, while the sum is 50.

The spelling of 666704065046 in words is "six hundred sixty-six billion, seven hundred four million, sixty-five thousand, forty-six".