2166427262 has 8 divisors (see below), whose sum is σ = 3249838800. Its totient is φ = 1083147664.

The previous prime is 2166427199. The next prime is 2166427267. The reversal of 2166427262 is 2627246612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166427267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44039 + ... + 79197.

It is an arithmetic number, because the mean of its divisors is an integer number (406229850).

Almost surely, 2^2166427262 is an apocalyptic number.

2166427262 is a deficient number, since it is larger than the sum of its proper divisors (1083411538).

2166427262 is a wasteful number, since it uses less digits than its factorization.

2166427262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65970.

The product of its digits is 96768, while the sum is 38.

The square root of 2166427262 is about 46544.8951228811. The cubic root of 2166427262 is about 1293.9416848019.

The spelling of 2166427262 in words is "two billion, one hundred sixty-six million, four hundred twenty-seven thousand, two hundred sixty-two".