23556564202 has 12 divisors (see below), whose sum is σ = 35364626406. Its totient is φ = 11768362320.

The previous prime is 23556564197. The next prime is 23556564247. The reversal of 23556564202 is 20246565532.

It can be written as a sum of positive squares in 3 ways, for example, as 21033410841 + 2523153361 = 145029^2 + 50231^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8232252 + ... + 8235112.

Almost surely, 2^23556564202 is an apocalyptic number.

23556564202 is a deficient number, since it is larger than the sum of its proper divisors (11808062204).

23556564202 is an frugal number, since it uses more digits than its factorization.

23556564202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921 (or 4892 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 23556564202 in words is "twenty-three billion, five hundred fifty-six million, five hundred sixty-four thousand, two hundred two".