168455388051 has 12 divisors (see below), whose sum is σ = 243432574840. Its totient is φ = 112253688000.

The previous prime is 168455388037. The next prime is 168455388053. The reversal of 168455388051 is 150883554861.

168455388051 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 553 + 8 + 80 + 5 + 1 = 666.

It is not a de Polignac number, because 168455388051 - 2¹⁵ = 168455355283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168455388053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4137286 + ... + 4177803.

Almost surely, 2^168455388051 is an apocalyptic number.

168455388051 is a deficient number, since it is larger than the sum of its proper divisors (74977186789).

168455388051 is a wasteful number, since it uses less digits than its factorization.

168455388051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317346 (or 8317343 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 168455388051 in words is "one hundred sixty-eight billion, four hundred fifty-five million, three hundred eighty-eight thousand, fifty-one".