20652345792 has 420 divisors, whose sum is σ = 69949969320. Its totient is φ = 5972714496.

The previous prime is 20652345751. The next prime is 20652345827. The reversal of 20652345792 is 29754325602.

20652345792 is a `hidden beast` number, since 20 + 6 + 52 + 3 + 4 + 579 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 162616833 + ... + 162616959.

It is an arithmetic number, because the mean of its divisors is an integer number (166547546).

Almost surely, 2^20652345792 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 20652345792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34974984660).

20652345792 is an abundant number, since it is smaller than the sum of its proper divisors (49297623528).

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

20652345792 is a wasteful number, since it uses less digits than its factorization.

20652345792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 20652345792 in words is "twenty billion, six hundred fifty-two million, three hundred forty-five thousand, seven hundred ninety-two".