2166706651092 has 48 divisors (see below), whose sum is σ = 5275599880320. Its totient is φ = 690815644288.

The previous prime is 2166706651091. The next prime is 2166706651093. The reversal of 2166706651092 is 2901566076612.

It is an interprime number because it is at equal distance from previous prime (2166706651091) and next prime (2166706651093).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166706651091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13514134 + ... + 13673522.

It is an arithmetic number, because the mean of its divisors is an integer number (109908330840).

Almost surely, 2^{2166706651092} is an apocalyptic number.

It is an amenable number.

2166706651092 is an abundant number, since it is smaller than the sum of its proper divisors (3108893229228).

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

2166706651092 is a wasteful number, since it uses less digits than its factorization.

2166706651092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208672 (or 208670 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 2166706651092 in words is "two trillion, one hundred sixty-six billion, seven hundred six million, six hundred fifty-one thousand, ninety-two".