20233072512 has 256 divisors, whose sum is σ = 63445550400. Its totient is φ = 6325862400.

The previous prime is 20233072397. The next prime is 20233072513. The reversal of 20233072512 is 21527033202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233072513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30609462 + ... + 30610122.

Almost surely, 2^20233072512 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 20233072512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31722775200).

20233072512 is an abundant number, since it is smaller than the sum of its proper divisors (43212477888).

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

20233072512 is a wasteful number, since it uses less digits than its factorization.

20233072512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The spelling of 20233072512 in words is "twenty billion, two hundred thirty-three million, seventy-two thousand, five hundred twelve".