199759755980 has 24 divisors (see below), whose sum is σ = 420683874912. Its totient is φ = 79677542912.

The previous prime is 199759755907. The next prime is 199759755997. The reversal of 199759755980 is 89557957991.

It is a junction number, because it is equal to n+sod(n) for n = 199759755898 and 199759755907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14140232 + ... + 14154351.

It is an arithmetic number, because the mean of its divisors is an integer number (17528494788).

Almost surely, 2^199759755980 is an apocalyptic number.

199759755980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199759755980 is an abundant number, since it is smaller than the sum of its proper divisors (220924118932).

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

199759755980 is a wasteful number, since it uses less digits than its factorization.

199759755980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28294945 (or 28294943 counting only the distinct ones).

The product of its (nonzero) digits is 321489000, while the sum is 74.

The spelling of 199759755980 in words is "one hundred ninety-nine billion, seven hundred fifty-nine million, seven hundred fifty-five thousand, nine hundred eighty".