2140166664 has 64 divisors (see below), whose sum is σ = 5997585600. Its totient is φ = 707067648.

The previous prime is 2140166641. The next prime is 2140166681. The reversal of 2140166664 is 4666610412.

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

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

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, 19434 + ... + 68249.

It is an arithmetic number, because the mean of its divisors is an integer number (93712275).

Almost surely, 2^2140166664 is an apocalyptic number.

2140166664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2140166664 is an abundant number, since it is smaller than the sum of its proper divisors (3857418936).

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

2140166664 is a wasteful number, since it uses less digits than its factorization.

2140166664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87811 (or 87801 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2140166664 is about 46261.9353680756. The cubic root of 2140166664 is about 1288.6921954152.

The spelling of 2140166664 in words is "two billion, one hundred forty million, one hundred sixty-six thousand, six hundred sixty-four".