166587150152442 has 32 divisors (see below), whose sum is σ = 333666320212800. Its totient is φ = 55447057110528.

The previous prime is 166587150152347. The next prime is 166587150152483. The reversal of 166587150152442 is 244251051785661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63316234 + ... + 65894762.

It is an arithmetic number, because the mean of its divisors is an integer number (10427072506650).

Almost surely, 2^{166587150152442} is an apocalyptic number.

166587150152442 is an abundant number, since it is smaller than the sum of its proper divisors (167079170060358).

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

166587150152442 is a wasteful number, since it uses less digits than its factorization.

166587150152442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594430.

The product of its (nonzero) digits is 16128000, while the sum is 57.

The spelling of 166587150152442 in words is "one hundred sixty-six trillion, five hundred eighty-seven billion, one hundred fifty million, one hundred fifty-two thousand, four hundred forty-two".