199922750664 has 144 divisors (see below), whose sum is σ = 629572601520. Its totient is φ = 52726826880.

The previous prime is 199922750647. The next prime is 199922750681. The reversal of 199922750664 is 466057229991.

It is an interprime number because it is at equal distance from previous prime (199922750647) and next prime (199922750681).

It is a junction number, because it is equal to n+sod(n) for n = 199922750598 and 199922750607.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 304222 + ... + 701709.

It is an arithmetic number, because the mean of its divisors is an integer number (4372031955).

Almost surely, 2^199922750664 is an apocalyptic number.

199922750664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199922750664 is an abundant number, since it is smaller than the sum of its proper divisors (429649850856).

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

199922750664 is a wasteful number, since it uses less digits than its factorization.

199922750664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005980 (or 1005956 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 199922750664 in words is "one hundred ninety-nine billion, nine hundred twenty-two million, seven hundred fifty thousand, six hundred sixty-four".