20650051624236 has 24 divisors (see below), whose sum is σ = 49737758751744. Its totient is φ = 6661306975440.

The previous prime is 20650051624211. The next prime is 20650051624253. The reversal of 20650051624236 is 63242615005602.

It is a super-2 number, since 2×20650051624236² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 27755445360 + ... + 27755446103.

It is an arithmetic number, because the mean of its divisors is an integer number (2072406614656).

Almost surely, 2^{20650051624236} is an apocalyptic number.

It is an amenable number.

20650051624236 is an abundant number, since it is smaller than the sum of its proper divisors (29087707127508).

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

20650051624236 is a wasteful number, since it uses less digits than its factorization.

20650051624236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55510891501 (or 55510891499 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 20650051624236 its reverse (63242615005602), we get a palindrome (83892666629838).

The spelling of 20650051624236 in words is "twenty trillion, six hundred fifty billion, fifty-one million, six hundred twenty-four thousand, two hundred thirty-six".