664582526492 has 6 divisors (see below), whose sum is σ = 1163019421368. Its totient is φ = 332291263244.

The previous prime is 664582526473. The next prime is 664582526501. The reversal of 664582526492 is 294625285466.

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 as a sum of consecutive naturals, namely, 83072815808 + ... + 83072815815.

It is an arithmetic number, because the mean of its divisors is an integer number (193836570228).

Almost surely, 2^664582526492 is an apocalyptic number.

It is an amenable number.

664582526492 is a deficient number, since it is larger than the sum of its proper divisors (498436894876).

664582526492 is a wasteful number, since it uses less digits than its factorization.

664582526492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166145631627 (or 166145631625 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 59.

The spelling of 664582526492 in words is "six hundred sixty-four billion, five hundred eighty-two million, five hundred twenty-six thousand, four hundred ninety-two".