2149641066 has 32 divisors (see below), whose sum is σ = 4474877760. Its totient is φ = 687585024.

The previous prime is 2149641047. The next prime is 2149641071. The reversal of 2149641066 is 6601469412.

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, 9535 + ... + 66258.

It is an arithmetic number, because the mean of its divisors is an integer number (139839930).

Almost surely, 2^2149641066 is an apocalyptic number.

2149641066 is an abundant number, since it is smaller than the sum of its proper divisors (2325236694).

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

2149641066 is a wasteful number, since it uses less digits than its factorization.

2149641066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75990.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 2149641066 is about 46364.2218310628. The cubic root of 2149641066 is about 1290.5910529883.

The spelling of 2149641066 in words is "two billion, one hundred forty-nine million, six hundred forty-one thousand, sixty-six".