2166739070 has 16 divisors (see below), whose sum is σ = 3947121360. Its totient is φ = 856253184.

The previous prime is 2166739067. The next prime is 2166739073. The reversal of 2166739070 is 709376612.

It is an interprime number because it is at equal distance from previous prime (2166739067) and next prime (2166739073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166739073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304435 + ... + 1306094.

It is an arithmetic number, because the mean of its divisors is an integer number (246695085).

Almost surely, 2^2166739070 is an apocalyptic number.

2166739070 is a deficient number, since it is larger than the sum of its proper divisors (1780382290).

2166739070 is a wasteful number, since it uses less digits than its factorization.

2166739070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610619.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 2166739070 is about 46548.2445426248. The cubic root of 2166739070 is about 1294.0037596630.

The spelling of 2166739070 in words is "two billion, one hundred sixty-six million, seven hundred thirty-nine thousand, seventy".