20453300672 has 112 divisors (see below), whose sum is σ = 47864328960. Its totient is φ = 8489318400.

The previous prime is 20453300669. The next prime is 20453300677. The reversal of 20453300672 is 27600335402.

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 (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453300677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2549147 + ... + 2557157.

It is an arithmetic number, because the mean of its divisors is an integer number (427360080).

Almost surely, 2^20453300672 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 20453300672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23932164480).

20453300672 is an abundant number, since it is smaller than the sum of its proper divisors (27411028288).

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

20453300672 is a wasteful number, since it uses less digits than its factorization.

20453300672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8210 (or 8200 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20453300672 in words is "twenty billion, four hundred fifty-three million, three hundred thousand, six hundred seventy-two".