6656531122 has 4 divisors (see below), whose sum is σ = 9984796686. Its totient is φ = 3328265560.

The previous prime is 6656531111. The next prime is 6656531143. The reversal of 6656531122 is 2211356566.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5664218121 + 992313001 = 75261^2 + 31501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664132779 + ... + 1664132782.

Almost surely, 2^6656531122 is an apocalyptic number.

6656531122 is a deficient number, since it is larger than the sum of its proper divisors (3328265564).

6656531122 is a wasteful number, since it uses less digits than its factorization.

6656531122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328265563.

The product of its digits is 64800, while the sum is 37.

The square root of 6656531122 is about 81587.5672023624. The cubic root of 6656531122 is about 1881.1177827233.

Adding to 6656531122 its reverse (2211356566), we get a palindrome (8867887688).

The spelling of 6656531122 in words is "six billion, six hundred fifty-six million, five hundred thirty-one thousand, one hundred twenty-two".