20602922472 has 192 divisors, whose sum is σ = 64965888000. Its totient is φ = 5829304320.

The previous prime is 20602922443. The next prime is 20602922477. The reversal of 20602922472 is 27422920602.

20602922472 is a `hidden beast` number, since 2 + 0 + 602 + 9 + 2 + 2 + 47 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20602922477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1703904 + ... + 1715952.

It is an arithmetic number, because the mean of its divisors is an integer number (338364000).

Almost surely, 2^20602922472 is an apocalyptic number.

20602922472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20602922472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32482944000).

20602922472 is an abundant number, since it is smaller than the sum of its proper divisors (44362965528).

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

20602922472 is a wasteful number, since it uses less digits than its factorization.

20602922472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12216 (or 12209 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 20602922472 in words is "twenty billion, six hundred two million, nine hundred twenty-two thousand, four hundred seventy-two".