6670905722 has 16 divisors (see below), whose sum is σ = 10780306152. Its totient is φ = 3077671680.

The previous prime is 6670905721. The next prime is 6670905751. The reversal of 6670905722 is 2275090766.

It can be written as a sum of positive squares in 4 ways, for example, as 6570885721 + 100020001 = 81061^2 + 10001^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6670905721) 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, 19022 + ... + 117062.

Almost surely, 2^6670905722 is an apocalyptic number.

6670905722 is a deficient number, since it is larger than the sum of its proper divisors (4109400430).

6670905722 is a wasteful number, since it uses less digits than its factorization.

6670905722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100673.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 6670905722 is about 81675.6127739486. The cubic root of 6670905722 is about 1882.4708836215.

The spelling of 6670905722 in words is "six billion, six hundred seventy million, nine hundred five thousand, seven hundred twenty-two".