664004133622 has 12 divisors (see below), whose sum is σ = 1005770078820. Its totient is φ = 328778735268.

The previous prime is 664004133613. The next prime is 664004133631. The reversal of 664004133622 is 226331400466.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (664004133613) and next prime (664004133631).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15625972 + ... + 15668407.

It is an arithmetic number, because the mean of its divisors is an integer number (83814173235).

Almost surely, 2^664004133622 is an apocalyptic number.

664004133622 is a deficient number, since it is larger than the sum of its proper divisors (341765945198).

664004133622 is a wasteful number, since it uses less digits than its factorization.

664004133622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31294587 (or 31294484 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 664004133622 in words is "six hundred sixty-four billion, four million, one hundred thirty-three thousand, six hundred twenty-two".