166791462822 has 80 divisors (see below), whose sum is σ = 377978884272. Its totient is φ = 54967636800.

The previous prime is 166791462811. The next prime is 166791462829. The reversal of 166791462822 is 228264197661.

166791462822 is a `hidden beast` number, since 1 + 6 + 6 + 7 + 9 + 1 + 4 + 628 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166791462829) 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 39 ways as a sum of consecutive naturals, for example, 11986393 + ... + 12000299.

Almost surely, 2^166791462822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166791462822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188989442136).

166791462822 is an abundant number, since it is smaller than the sum of its proper divisors (211187421450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166791462822 is a wasteful number, since it uses less digits than its factorization.

166791462822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755 (or 14746 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 166791462822 in words is "one hundred sixty-six billion, seven hundred ninety-one million, four hundred sixty-two thousand, eight hundred twenty-two".