166115615432022 has 160 divisors (see below), whose sum is σ = 382236174802944. Its totient is φ = 53895302294400.

The previous prime is 166115615432009. The next prime is 166115615432027. The reversal of 166115615432022 is 220234516511661.

166115615432022 is a `hidden beast` number, since 1 + 6 + 6 + 1 + 1 + 5 + 61 + 543 + 20 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166115615432027) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6170471122 + ... + 6170498042.

Almost surely, 2^{166115615432022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166115615432022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191118087401472).

166115615432022 is an abundant number, since it is smaller than the sum of its proper divisors (216120559370922).

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

166115615432022 is a wasteful number, since it uses less digits than its factorization.

166115615432022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31416 (or 31407 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 166115615432022 in words is "one hundred sixty-six trillion, one hundred fifteen billion, six hundred fifteen million, four hundred thirty-two thousand, twenty-two".