20053374551256 has 64 divisors (see below), whose sum is σ = 50389526515680. Its totient is φ = 6650314997760.

The previous prime is 20053374551251. The next prime is 20053374551279. The reversal of 20053374551256 is 65215547335002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053374551251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234168126 + ... + 234253746.

Almost surely, 2^{20053374551256} is an apocalyptic number.

It is an amenable number.

20053374551256 is an abundant number, since it is smaller than the sum of its proper divisors (30336151964424).

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

20053374551256 is a wasteful number, since it uses less digits than its factorization.

20053374551256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135364 (or 135360 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 48.

The spelling of 20053374551256 in words is "twenty trillion, fifty-three billion, three hundred seventy-four million, five hundred fifty-one thousand, two hundred fifty-six".