664130670966 has 80 divisors (see below), whose sum is σ = 1722265290240. Its totient is φ = 187349675760.

The previous prime is 664130670953. The next prime is 664130670977. The reversal of 664130670966 is 669076031466.

It is a super-3 number, since 3×664130670966³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 39 ways as a sum of consecutive naturals, for example, 3617080 + ... + 3796251.

It is an arithmetic number, because the mean of its divisors is an integer number (21528316128).

Almost surely, 2^664130670966 is an apocalyptic number.

664130670966 is an abundant number, since it is smaller than the sum of its proper divisors (1058134619274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664130670966 is a wasteful number, since it uses less digits than its factorization.

664130670966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413431 (or 7413422 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 664130670966 in words is "six hundred sixty-four billion, one hundred thirty million, six hundred seventy thousand, nine hundred sixty-six".