168089734945 has 32 divisors (see below), whose sum is σ = 232965175680. Its totient is φ = 115143459840.

The previous prime is 168089734921. The next prime is 168089734951. The reversal of 168089734945 is 549437980861.

It is not a de Polignac number, because 168089734945 - 2¹¹ = 168089732897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284104 + ... + 645673.

It is an arithmetic number, because the mean of its divisors is an integer number (7280161740).

Almost surely, 2^168089734945 is an apocalyptic number.

It is an amenable number.

168089734945 is a deficient number, since it is larger than the sum of its proper divisors (64875440735).

168089734945 is a wasteful number, since it uses less digits than its factorization.

168089734945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929985.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 168089734945 in words is "one hundred sixty-eight billion, eighty-nine million, seven hundred thirty-four thousand, nine hundred forty-five".