20425564103311 has 12 divisors (see below), whose sum is σ = 21702076128040. Its totient is φ = 19220222597760.

The previous prime is 20425564103303. The next prime is 20425564103317. The reversal of 20425564103311 is 11330146552402.

It is not a de Polignac number, because 20425564103311 - 2³ = 20425564103303 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425564103317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5603976 + ... + 8500333.

Almost surely, 2^{20425564103311} is an apocalyptic number.

20425564103311 is a deficient number, since it is larger than the sum of its proper divisors (1276512024729).

20425564103311 is a wasteful number, since it uses less digits than its factorization.

20425564103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14109354 (or 14109337 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20425564103311 in words is "twenty trillion, four hundred twenty-five billion, five hundred sixty-four million, one hundred three thousand, three hundred eleven".