20620104406 has 48 divisors (see below), whose sum is σ = 36199865520. Its totient is φ = 8771840000.

The previous prime is 20620104383. The next prime is 20620104409. The reversal of 20620104406 is 60440102602.

It is a super-2 number, since 2×20620104406² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620104409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 722406 + ... + 750406.

It is an arithmetic number, because the mean of its divisors is an integer number (754163865).

Almost surely, 2^20620104406 is an apocalyptic number.

20620104406 is a deficient number, since it is larger than the sum of its proper divisors (15579761114).

20620104406 is a wasteful number, since it uses less digits than its factorization.

20620104406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28221 (or 28210 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 20620104406 in words is "twenty billion, six hundred twenty million, one hundred four thousand, four hundred six".