166922553279 has 8 divisors (see below), whose sum is σ = 234277267840. Its totient is φ = 105424770456.

The previous prime is 166922553269. The next prime is 166922553353. The reversal of 166922553279 is 972355229661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166922553279 - 2⁷ = 166922553151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 2928465847 = 166922553279 / (1 + 6 + 6 + 9 + 2 + 2 + 5 + 5 + 3 + 2 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166922553269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464232867 + ... + 1464232980.

It is an arithmetic number, because the mean of its divisors is an integer number (29284658480).

Almost surely, 2^166922553279 is an apocalyptic number.

166922553279 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

166922553279 is a deficient number, since it is larger than the sum of its proper divisors (67354714561).

166922553279 is a wasteful number, since it uses less digits than its factorization.

166922553279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928465869.

The product of its digits is 12247200, while the sum is 57.

The spelling of 166922553279 in words is "one hundred sixty-six billion, nine hundred twenty-two million, five hundred fifty-three thousand, two hundred seventy-nine".