20648088972 has 192 divisors, whose sum is σ = 63547545600. Its totient is φ = 5672782080.

The previous prime is 20648088953. The next prime is 20648089067. The reversal of 20648088972 is 27988084602.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5764222 + ... + 5767802.

It is an arithmetic number, because the mean of its divisors is an integer number (330976800).

Almost surely, 2^20648088972 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 20648088972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31773772800).

20648088972 is an abundant number, since it is smaller than the sum of its proper divisors (42899456628).

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

20648088972 is a wasteful number, since it uses less digits than its factorization.

20648088972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893 (or 3885 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 20648088972 in words is "twenty billion, six hundred forty-eight million, eighty-eight thousand, nine hundred seventy-two".