199902146832 has 80 divisors (see below), whose sum is σ = 575239015680. Its totient is φ = 66466147968.

The previous prime is 199902146803. The next prime is 199902146839. The reversal of 199902146832 is 238641209991.

199902146832 is a `hidden beast` number, since 1 + 99 + 90 + 2 + 1 + 468 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (199902146839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411288 + ... + 754295.

It is an arithmetic number, because the mean of its divisors is an integer number (7190487696).

Almost surely, 2^199902146832 is an apocalyptic number.

199902146832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199902146832 is an abundant number, since it is smaller than the sum of its proper divisors (375336868848).

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

199902146832 is a wasteful number, since it uses less digits than its factorization.

199902146832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165997 (or 1165985 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 199902146832 in words is "one hundred ninety-nine billion, nine hundred two million, one hundred forty-six thousand, eight hundred thirty-two".