163658791416 has 32 divisors (see below), whose sum is σ = 410462582400. Its totient is φ = 54377516640.

The previous prime is 163658791397. The next prime is 163658791459. The reversal of 163658791416 is 614197856361.

It is a congruent 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, 10955746 + ... + 10970673.

It is an arithmetic number, because the mean of its divisors is an integer number (12826955700).

Almost surely, 2^163658791416 is an apocalyptic number.

It is an amenable number.

163658791416 is an abundant number, since it is smaller than the sum of its proper divisors (246803790984).

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

163658791416 is a wasteful number, since it uses less digits than its factorization.

163658791416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21926739 (or 21926735 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 163658791416 in words is "one hundred sixty-three billion, six hundred fifty-eight million, seven hundred ninety-one thousand, four hundred sixteen".