20136633125 has 20 divisors (see below), whose sum is σ = 28757419680. Its totient is φ = 13807974000.

The previous prime is 20136633107. The next prime is 20136633137. The reversal of 20136633125 is 52133663102.

It is not a de Polignac number, because 20136633125 - 2¹⁴ = 20136616741 is a prime.

It is a super-2 number, since 2×20136633125² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20136633091 and 20136633100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2296955 + ... + 2305704.

It is an arithmetic number, because the mean of its divisors is an integer number (1437870984).

Almost surely, 2^20136633125 is an apocalyptic number.

20136633125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20136633125 is a deficient number, since it is larger than the sum of its proper divisors (8620786555).

20136633125 is an frugal number, since it uses more digits than its factorization.

20136633125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602686 (or 4602671 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 20136633125 in words is "twenty billion, one hundred thirty-six million, six hundred thirty-three thousand, one hundred twenty-five".