166006610573616 has 160 divisors (see below), whose sum is σ = 497269305584640. Its totient is φ = 52924168281600.

The previous prime is 166006610573579. The next prime is 166006610573627. The reversal of 166006610573616 is 616375016600661.

It is a happy number.

166006610573616 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 0 + 6 + 6 + 1 + 0 + 573 + 61 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95728501 + ... + 97447211.

It is an arithmetic number, because the mean of its divisors is an integer number (3107933159904).

Almost surely, 2^{166006610573616} is an apocalyptic number.

166006610573616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166006610573616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248634652792320).

166006610573616 is an abundant number, since it is smaller than the sum of its proper divisors (331262695011024).

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

166006610573616 is a wasteful number, since it uses less digits than its factorization.

166006610573616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728472 (or 1728460 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 166006610573616 in words is "one hundred sixty-six trillion, six billion, six hundred ten million, five hundred seventy-three thousand, six hundred sixteen".