20253588947736 has 32 divisors (see below), whose sum is σ = 50639181673200. Its totient is φ = 6750501742080.

The previous prime is 20253588947719. The next prime is 20253588947789. The reversal of 20253588947736 is 63774988535202.

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 7 ways as a sum of consecutive naturals, for example, 43172701 + ... + 43639308.

Almost surely, 2^{20253588947736} is an apocalyptic number.

It is an amenable number.

20253588947736 is an abundant number, since it is smaller than the sum of its proper divisors (30385592725464).

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

20253588947736 is a wasteful number, since it uses less digits than its factorization.

20253588947736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86821739 (or 86821735 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 69.

The spelling of 20253588947736 in words is "twenty trillion, two hundred fifty-three billion, five hundred eighty-eight million, nine hundred forty-seven thousand, seven hundred thirty-six".