20426122156610 has 16 divisors (see below), whose sum is σ = 36767761553016. Its totient is φ = 8170284046848.

The previous prime is 20426122156597. The next prime is 20426122156619. The reversal of 20426122156610 is 1665122162402.

It can be written as a sum of positive squares in 4 ways, for example, as 18577280958769 + 1848841197841 = 4310137^2 + 1359721^2 .

It is not an unprimeable number, because it can be changed into a prime (20426122156619) 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, 20080829 + ... + 21073488.

Almost surely, 2^{20426122156610} is an apocalyptic number.

20426122156610 is a deficient number, since it is larger than the sum of its proper divisors (16341639396406).

20426122156610 is a wasteful number, since it uses less digits than its factorization.

20426122156610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41203957.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 20426122156610 in words is "twenty trillion, four hundred twenty-six billion, one hundred twenty-two million, one hundred fifty-six thousand, six hundred ten".