20536262455140 has 72 divisors (see below), whose sum is σ = 62294679091008. Its totient is φ = 5476218004800.

The previous prime is 20536262455097. The next prime is 20536262455171. The reversal of 20536262455140 is 4155426263502.

20536262455140 is a `hidden beast` number, since 2 + 0 + 5 + 3 + 6 + 2 + 624 + 5 + 5 + 14 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 7256769 + ... + 9681591.

It is an arithmetic number, because the mean of its divisors is an integer number (865203876264).

Almost surely, 2^{20536262455140} is an apocalyptic number.

20536262455140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20536262455140 is an abundant number, since it is smaller than the sum of its proper divisors (41758416635868).

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

20536262455140 is a wasteful number, since it uses less digits than its factorization.

20536262455140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471889 (or 2471884 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 20536262455140 in words is "twenty trillion, five hundred thirty-six billion, two hundred sixty-two million, four hundred fifty-five thousand, one hundred forty".