167996839109 has 12 divisors (see below), whose sum is σ = 185132432940. Its totient is φ = 152331748800.

The previous prime is 167996839097. The next prime is 167996839147. The reversal of 167996839109 is 901938699761.

It can be written as a sum of positive squares in 2 ways, for example, as 96976188100 + 71020651009 = 311410^2 + 266497^2 .

It is a de Polignac number, because none of the positive numbers 2^k-167996839109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167996839189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1737512 + ... + 1831649.

It is an arithmetic number, because the mean of its divisors is an integer number (15427702745).

Almost surely, 2^167996839109 is an apocalyptic number.

It is an amenable number.

167996839109 is a deficient number, since it is larger than the sum of its proper divisors (17135593831).

167996839109 is a wasteful number, since it uses less digits than its factorization.

167996839109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569572 (or 3569561 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 68.

The spelling of 167996839109 in words is "one hundred sixty-seven billion, nine hundred ninety-six million, eight hundred thirty-nine thousand, one hundred nine".