2640502166 has 32 divisors (see below), whose sum is σ = 4216942080. Its totient is φ = 1237332096.

The previous prime is 2640502153. The next prime is 2640502177. The reversal of 2640502166 is 6612050462.

It is a congruent number.

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, 913175 + ... + 916061.

It is an arithmetic number, because the mean of its divisors is an integer number (131779440).

Almost surely, 2^2640502166 is an apocalyptic number.

2640502166 is a deficient number, since it is larger than the sum of its proper divisors (1576439914).

2640502166 is a wasteful number, since it uses less digits than its factorization.

2640502166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2640502166 is about 51385.8167785625. The cubic root of 2640502166 is about 1382.1722712444.

The spelling of 2640502166 in words is "two billion, six hundred forty million, five hundred two thousand, one hundred sixty-six".