168540716674 has 16 divisors (see below), whose sum is σ = 275827946976. Its totient is φ = 76599959200.

The previous prime is 168540716657. The next prime is 168540716699. The reversal of 168540716674 is 476617045861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289027 + ... + 648550.

It is an arithmetic number, because the mean of its divisors is an integer number (17239246686).

Almost surely, 2^168540716674 is an apocalyptic number.

168540716674 is a deficient number, since it is larger than the sum of its proper divisors (107287230302).

168540716674 is a wasteful number, since it uses less digits than its factorization.

168540716674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945761.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 168540716674 in words is "one hundred sixty-eight billion, five hundred forty million, seven hundred sixteen thousand, six hundred seventy-four".