6662222664 has 64 divisors (see below), whose sum is σ = 17695627200. Its totient is φ = 2086205184.

The previous prime is 6662222647. The next prime is 6662222687. The reversal of 6662222664 is 4662222666.

It is a nude number because it is divisible by every one of its digits.

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, 103602 + ... + 155105.

It is an arithmetic number, because the mean of its divisors is an integer number (276494175).

Almost surely, 2^6662222664 is an apocalyptic number.

It is an amenable number.

6662222664 is an abundant number, since it is smaller than the sum of its proper divisors (11033404536).

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

6662222664 is a wasteful number, since it uses less digits than its factorization.

6662222664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258782 (or 258778 counting only the distinct ones).

The product of its digits is 497664, while the sum is 42.

The square root of 6662222664 is about 81622.4397086978. The cubic root of 6662222664 is about 1881.6537681421.

The spelling of 6662222664 in words is "six billion, six hundred sixty-two million, two hundred twenty-two thousand, six hundred sixty-four".