1660205170008 has 96 divisors (see below), whose sum is σ = 5605887605760. Its totient is φ = 431222120640.

The previous prime is 1660205169991. The next prime is 1660205170021. The reversal of 1660205170008 is 8000715020661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149724360 + ... + 149735447.

It is an arithmetic number, because the mean of its divisors is an integer number (58394662560).

Almost surely, 2^{1660205170008} is an apocalyptic number.

1660205170008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1660205170008 is an abundant number, since it is smaller than the sum of its proper divisors (3945682435752).

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

1660205170008 is a wasteful number, since it uses less digits than its factorization.

1660205170008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299459837 (or 299459830 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 1660205170008 in words is "one trillion, six hundred sixty billion, two hundred five million, one hundred seventy thousand, eight".