168078181707 has 16 divisors (see below), whose sum is σ = 250532356480. Its totient is φ = 111364681896.

The previous prime is 168078181693. The next prime is 168078181717. The reversal of 168078181707 is 707181870861.

It is not a de Polignac number, because 168078181707 - 2¹⁴ = 168078165323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168078181717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19091053 + ... + 19099854.

It is an arithmetic number, because the mean of its divisors is an integer number (15658272280).

Almost surely, 2^168078181707 is an apocalyptic number.

168078181707 is a deficient number, since it is larger than the sum of its proper divisors (82454174773).

168078181707 is a wasteful number, since it uses less digits than its factorization.

168078181707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38191079 (or 38191073 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 54.

The spelling of 168078181707 in words is "one hundred sixty-eight billion, seventy-eight million, one hundred eighty-one thousand, seven hundred seven".