664604405122 has 16 divisors (see below), whose sum is σ = 1139390668800. Its totient is φ = 284813251488.

The previous prime is 664604405119. The next prime is 664604405167. The reversal of 664604405122 is 221504406466.

It is a happy number.

It is a super-3 number, since 3×664604405122³ (a number of 36 digits) contains 333 as substring.

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, 1192578 + ... + 1658749.

It is an arithmetic number, because the mean of its divisors is an integer number (71211916800).

Almost surely, 2^664604405122 is an apocalyptic number.

664604405122 is a deficient number, since it is larger than the sum of its proper divisors (474786263678).

664604405122 is a wasteful number, since it uses less digits than its factorization.

664604405122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867985.

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 664604405122 in words is "six hundred sixty-four billion, six hundred four million, four hundred five thousand, one hundred twenty-two".