168836732406 has 24 divisors (see below), whose sum is σ = 367203854160. Its totient is φ = 56064920976.

The previous prime is 168836732327. The next prime is 168836732413. The reversal of 168836732406 is 604237638861.

168836732406 is a `hidden beast` number, since 168 + 8 + 3 + 6 + 73 + 2 + 406 = 666.

It is a super-5 number, since 5×168836732406⁵ (a number of 57 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17827621 + ... + 17837088.

It is an arithmetic number, because the mean of its divisors is an integer number (15300160590).

Almost surely, 2^168836732406 is an apocalyptic number.

168836732406 is an abundant number, since it is smaller than the sum of its proper divisors (198367121754).

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

168836732406 is a wasteful number, since it uses less digits than its factorization.

168836732406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35664980 (or 35664977 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 168836732406 in words is "one hundred sixty-eight billion, eight hundred thirty-six million, seven hundred thirty-two thousand, four hundred six".