2166667340 has 48 divisors (see below), whose sum is σ = 4822094592. Its totient is φ = 814934016.

The previous prime is 2166667339. The next prime is 2166667387. The reversal of 2166667340 is 437666612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484997 + ... + 489443.

It is an arithmetic number, because the mean of its divisors is an integer number (100460304).

Almost surely, 2^2166667340 is an apocalyptic number.

2166667340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2166667340 is an abundant number, since it is smaller than the sum of its proper divisors (2655427252).

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

2166667340 is a wasteful number, since it uses less digits than its factorization.

2166667340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906 (or 5904 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 2166667340 is about 46547.4740453228. The cubic root of 2166667340 is about 1293.9894801534.

The spelling of 2166667340 in words is "two billion, one hundred sixty-six million, six hundred sixty-seven thousand, three hundred forty".