168136580858 has 16 divisors (see below), whose sum is σ = 253860959520. Its totient is φ = 83516703696.

The previous prime is 168136580839. The next prime is 168136580873. The reversal of 168136580858 is 858085631861.

It is a junction number, because it is equal to n+sod(n) for n = 168136580797 and 168136580806.

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, 658973 + ... + 877791.

It is an arithmetic number, because the mean of its divisors is an integer number (15866309970).

Almost surely, 2^168136580858 is an apocalyptic number.

168136580858 is a deficient number, since it is larger than the sum of its proper divisors (85724378662).

168136580858 is a wasteful number, since it uses less digits than its factorization.

168136580858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221341.

The product of its (nonzero) digits is 11059200, while the sum is 59.

The spelling of 168136580858 in words is "one hundred sixty-eight billion, one hundred thirty-six million, five hundred eighty thousand, eight hundred fifty-eight".