20212499564992 has 112 divisors (see below), whose sum is σ = 45996528093120. Its totient is φ = 8632789696512.

The previous prime is 20212499564987. The next prime is 20212499565007. The reversal of 20212499564992 is 29946599421202.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

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, 165570408 + ... + 165692440.

Almost surely, 2^{20212499564992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212499564992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22998264046560).

20212499564992 is an abundant number, since it is smaller than the sum of its proper divisors (25784028528128).

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

20212499564992 is a wasteful number, since it uses less digits than its factorization.

20212499564992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123318 (or 123308 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 64.

The spelling of 20212499564992 in words is "twenty trillion, two hundred twelve billion, four hundred ninety-nine million, five hundred sixty-four thousand, nine hundred ninety-two".