199004565688 has 16 divisors (see below), whose sum is σ = 375637815000. Its totient is φ = 98834481696.

The previous prime is 199004565677. The next prime is 199004565703. The reversal of 199004565688 is 886565400991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83473878 + ... + 83476261.

Almost surely, 2^199004565688 is an apocalyptic number.

It is an amenable number.

199004565688 is a deficient number, since it is larger than the sum of its proper divisors (176633249312).

199004565688 is a wasteful number, since it uses less digits than its factorization.

199004565688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166950294 (or 166950290 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 199004565688 in words is "one hundred ninety-nine billion, four million, five hundred sixty-five thousand, six hundred eighty-eight".