168430239621 has 48 divisors (see below), whose sum is σ = 290797164480. Its totient is φ = 96069486240.

The previous prime is 168430239599. The next prime is 168430239629. The reversal of 168430239621 is 126932034861.

168430239621 is a `hidden beast` number, since 16 + 8 + 4 + 3 + 0 + 2 + 3 + 9 + 621 = 666.

It is not a de Polignac number, because 168430239621 - 2¹⁰ = 168430238597 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168430239629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 607311 + ... + 840051.

It is an arithmetic number, because the mean of its divisors is an integer number (6058274260).

Almost surely, 2^168430239621 is an apocalyptic number.

It is an amenable number.

168430239621 is a deficient number, since it is larger than the sum of its proper divisors (122366924859).

168430239621 is a wasteful number, since it uses less digits than its factorization.

168430239621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233311 (or 233298 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 168430239621 in words is "one hundred sixty-eight billion, four hundred thirty million, two hundred thirty-nine thousand, six hundred twenty-one".