199807527592664 has 32 divisors (see below), whose sum is σ = 382297794031440. Its totient is φ = 97874499120000.

The previous prime is 199807527592633. The next prime is 199807527592667. The reversal of 199807527592664 is 466295725708991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199807527592667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815498339 + ... + 815743314.

Almost surely, 2^{199807527592664} is an apocalyptic number.

It is an amenable number.

199807527592664 is a deficient number, since it is larger than the sum of its proper divisors (182490266438776).

199807527592664 is a wasteful number, since it uses less digits than its factorization.

199807527592664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631241971 (or 1631241967 counting only the distinct ones).

The product of its (nonzero) digits is 4115059200, while the sum is 80.

The spelling of 199807527592664 in words is "one hundred ninety-nine trillion, eight hundred seven billion, five hundred twenty-seven million, five hundred ninety-two thousand, six hundred sixty-four".