166496742379 has 16 divisors (see below), whose sum is σ = 193612608000. Its totient is φ = 141579191520.

The previous prime is 166496742371. The next prime is 166496742403. The reversal of 166496742379 is 973247694661.

It is a cyclic number.

It is not a de Polignac number, because 166496742379 - 2³ = 166496742371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166496742379.

It is not an unprimeable number, because it can be changed into a prime (166496742371) 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, 5025484 + ... + 5058505.

It is an arithmetic number, because the mean of its divisors is an integer number (12100788000).

Almost surely, 2^166496742379 is an apocalyptic number.

166496742379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

166496742379 is a deficient number, since it is larger than the sum of its proper divisors (27115865621).

166496742379 is a wasteful number, since it uses less digits than its factorization.

166496742379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084098.

The product of its digits is 82301184, while the sum is 64.

The spelling of 166496742379 in words is "one hundred sixty-six billion, four hundred ninety-six million, seven hundred forty-two thousand, three hundred seventy-nine".