20826862453156 has 48 divisors (see below), whose sum is σ = 38732698897200. Its totient is φ = 9798797266944.

The previous prime is 20826862453087. The next prime is 20826862453181. The reversal of 20826862453156 is 65135426862802.

It can be written as a sum of positive squares in 8 ways, for example, as 2228481696100 + 18598380757056 = 1492810^2 + 4312584^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20826862453156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94553680 + ... + 94773688.

It is an arithmetic number, because the mean of its divisors is an integer number (806931227025).

Almost surely, 2^{20826862453156} is an apocalyptic number.

It is an amenable number.

20826862453156 is a deficient number, since it is larger than the sum of its proper divisors (17905836444044).

20826862453156 is a wasteful number, since it uses less digits than its factorization.

20826862453156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224881 (or 224845 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 58.

The spelling of 20826862453156 in words is "twenty trillion, eight hundred twenty-six billion, eight hundred sixty-two million, four hundred fifty-three thousand, one hundred fifty-six".