20704053090 has 128 divisors (see below), whose sum is σ = 57542400000. Its totient is φ = 4669733376.

The previous prime is 20704053053. The next prime is 20704053103. The reversal of 20704053090 is 9035040702.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 13811161 + ... + 13812659.

It is an arithmetic number, because the mean of its divisors is an integer number (449550000).

Almost surely, 2^20704053090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20704053090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28771200000).

20704053090 is an abundant number, since it is smaller than the sum of its proper divisors (36838346910).

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

20704053090 is a wasteful number, since it uses less digits than its factorization.

20704053090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344.

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 20704053090 its reverse (9035040702), we get a palindrome (29739093792).

The spelling of 20704053090 in words is "twenty billion, seven hundred four million, fifty-three thousand, ninety".