168350117138 has 64 divisors (see below), whose sum is σ = 299889063936. Its totient is φ = 69385680000.

The previous prime is 168350117123. The next prime is 168350117147. The reversal of 168350117138 is 831711053861.

168350117138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168350117138² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11346881 + ... + 11361707.

It is an arithmetic number, because the mean of its divisors is an integer number (4685766624).

Almost surely, 2^168350117138 is an apocalyptic number.

168350117138 is a deficient number, since it is larger than the sum of its proper divisors (131538946798).

168350117138 is a wasteful number, since it uses less digits than its factorization.

168350117138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15159.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 168350117138 in words is "one hundred sixty-eight billion, three hundred fifty million, one hundred seventeen thousand, one hundred thirty-eight".