20792545452 has 240 divisors, whose sum is σ = 63030623040. Its totient is φ = 5854560768.

The previous prime is 20792545343. The next prime is 20792545471. The reversal of 20792545452 is 25454529702.

It is a junction number, because it is equal to n+sod(n) for n = 20792545398 and 20792545407.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 77295574 + ... + 77295842.

It is an arithmetic number, because the mean of its divisors is an integer number (262627596).

Almost surely, 2^20792545452 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 20792545452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31515311520).

20792545452 is an abundant number, since it is smaller than the sum of its proper divisors (42238077588).

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

20792545452 is a wasteful number, since it uses less digits than its factorization.

20792545452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 20792545452 in words is "twenty billion, seven hundred ninety-two million, five hundred forty-five thousand, four hundred fifty-two".