20425676355 has 96 divisors (see below), whose sum is σ = 42318941184. Its totient is φ = 8910874368.

The previous prime is 20425676353. The next prime is 20425676377. The reversal of 20425676355 is 55367652402.

20425676355 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 5 + 6 + 7 + 635 + 5 = 666.

It is not a de Polignac number, because 20425676355 - 2¹ = 20425676353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20425676355.

It is not an unprimeable number, because it can be changed into a prime (20425676353) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3380397 + ... + 3386433.

It is an arithmetic number, because the mean of its divisors is an integer number (440822304).

Almost surely, 2^20425676355 is an apocalyptic number.

20425676355 is an abundant number, since it is smaller than the sum of its proper divisors (21893264829).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20425676355 is a wasteful number, since it uses less digits than its factorization.

20425676355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545 (or 6542 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 20425676355 in words is "twenty billion, four hundred twenty-five million, six hundred seventy-six thousand, three hundred fifty-five".