167920244191 has 108 divisors (see below), whose sum is σ = 224992984608. Its totient is φ = 124452453888.

The previous prime is 167920244137. The next prime is 167920244203. The reversal of 167920244191 is 191442029761.

It is a de Polignac number, because none of the positive numbers 2^k-167920244191 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167920241191) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1540552645 + ... + 1540552753.

It is an arithmetic number, because the mean of its divisors is an integer number (2083268376).

Almost surely, 2^167920244191 is an apocalyptic number.

167920244191 is a deficient number, since it is larger than the sum of its proper divisors (57072740417).

167920244191 is a wasteful number, since it uses less digits than its factorization.

167920244191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 167920244191 in words is "one hundred sixty-seven billion, nine hundred twenty million, two hundred forty-four thousand, one hundred ninety-one".