20243244336525 has 72 divisors (see below), whose sum is σ = 41477717012160. Its totient is φ = 9245095384320.

The previous prime is 20243244336487. The next prime is 20243244336589. The reversal of 20243244336525 is 52563344234202.

20243244336525 is a `hidden beast` number, since 2 + 0 + 2 + 43 + 244 + 3 + 365 + 2 + 5 = 666.

It is not a de Polignac number, because 20243244336525 - 2⁷ = 20243244336397 is a prime.

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 (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4594155 + ... + 7848104.

Almost surely, 2^{20243244336525} is an apocalyptic number.

20243244336525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20243244336525 is an abundant number, since it is smaller than the sum of its proper divisors (21234472675635).

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

20243244336525 is a wasteful number, since it uses less digits than its factorization.

20243244336525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443315 (or 12443307 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 45.

The spelling of 20243244336525 in words is "twenty trillion, two hundred forty-three billion, two hundred forty-four million, three hundred thirty-six thousand, five hundred twenty-five".