168416913 has 32 divisors (see below), whose sum is σ = 264562432. Its totient is φ = 93312000.

The previous prime is 168416903. The next prime is 168416921. The reversal of 168416913 is 319614861.

It is not a de Polignac number, because 168416913 - 2⁸ = 168416657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168416903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92613 + ... + 94413.

It is an arithmetic number, because the mean of its divisors is an integer number (8267576).

Almost surely, 2^168416913 is an apocalyptic number.

It is an amenable number.

168416913 is a deficient number, since it is larger than the sum of its proper divisors (96145519).

168416913 is a wasteful number, since it uses less digits than its factorization.

168416913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945.

The product of its digits is 31104, while the sum is 39.

The square root of 168416913 is about 12977.5541994630. The cubic root of 168416913 is about 552.2408992381.

The spelling of 168416913 in words is "one hundred sixty-eight million, four hundred sixteen thousand, nine hundred thirteen".