199447904160 has 144 divisors (see below), whose sum is σ = 702571484160. Its totient is φ = 51470415360.

The previous prime is 199447904119. The next prime is 199447904171. The reversal of 199447904160 is 61409744991.

199447904160 is a `hidden beast` number, since 1 + 9 + 9 + 4 + 479 + 0 + 4 + 160 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 199447904097 and 199447904106.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2189320 + ... + 2278599.

It is an arithmetic number, because the mean of its divisors is an integer number (4878968640).

Almost surely, 2^199447904160 is an apocalyptic number.

199447904160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199447904160 is an abundant number, since it is smaller than the sum of its proper divisors (503123580000).

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

199447904160 is a wasteful number, since it uses less digits than its factorization.

199447904160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467971 (or 4467960 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 199447904160 in words is "one hundred ninety-nine billion, four hundred forty-seven million, nine hundred four thousand, one hundred sixty".