20602630680525 has 48 divisors (see below), whose sum is σ = 37848388321920. Its totient is φ = 10987897622400.

The previous prime is 20602630680517. The next prime is 20602630680551. The reversal of 20602630680525 is 52508603620602.

20602630680525 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 2 + 63 + 0 + 68 + 0 + 525 = 666.

It is not a de Polignac number, because 20602630680525 - 2³ = 20602630680517 is a prime.

It is a super-2 number, since 2×20602630680525² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51040240 + ... + 51442310.

It is an arithmetic number, because the mean of its divisors is an integer number (788508090040).

Almost surely, 2^{20602630680525} is an apocalyptic number.

20602630680525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20602630680525 is a deficient number, since it is larger than the sum of its proper divisors (17245757641395).

20602630680525 is a wasteful number, since it uses less digits than its factorization.

20602630680525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478003 (or 477992 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 20602630680525 in words is "twenty trillion, six hundred two billion, six hundred thirty million, six hundred eighty thousand, five hundred twenty-five".