166036632512 has 56 divisors (see below), whose sum is σ = 349029991296. Its totient is φ = 78096826368.

The previous prime is 166036632511. The next prime is 166036632547. The reversal of 166036632512 is 215236630661.

It is a self number, because there is not a number n which added to its sum of digits gives 166036632512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166036632511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262833 + ... + 2335055.

It is an arithmetic number, because the mean of its divisors is an integer number (6232678416).

Almost surely, 2^166036632512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166036632512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174514995648).

166036632512 is an abundant number, since it is smaller than the sum of its proper divisors (182993358784).

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

166036632512 is a wasteful number, since it uses less digits than its factorization.

166036632512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74365 (or 74355 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 166036632512 in words is "one hundred sixty-six billion, thirty-six million, six hundred thirty-two thousand, five hundred twelve".