20514100320520 has 64 divisors (see below), whose sum is σ = 50996689326720. Its totient is φ = 7387174738944.

The previous prime is 20514100320473. The next prime is 20514100320523. The reversal of 20514100320520 is 2502300141502.

It is not an unprimeable number, because it can be changed into a prime (20514100320523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655805982 + ... + 655837261.

It is an arithmetic number, because the mean of its divisors is an integer number (796823270730).

Almost surely, 2^{20514100320520} is an apocalyptic number.

20514100320520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20514100320520 is an abundant number, since it is smaller than the sum of its proper divisors (30482589006200).

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

20514100320520 is a wasteful number, since it uses less digits than its factorization.

20514100320520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311643294 (or 1311643290 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 20514100320520 in words is "twenty trillion, five hundred fourteen billion, one hundred million, three hundred twenty thousand, five hundred twenty".