20245056104 has 64 divisors (see below), whose sum is σ = 46765098240. Its totient is φ = 8001192960.

The previous prime is 20245056089. The next prime is 20245056119. The reversal of 20245056104 is 40165054202.

It is an interprime number because it is at equal distance from previous prime (20245056089) and next prime (20245056119).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760784 + ... + 786944.

It is an arithmetic number, because the mean of its divisors is an integer number (730704660).

Almost surely, 2^20245056104 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 20245056104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23382549120).

20245056104 is an abundant number, since it is smaller than the sum of its proper divisors (26520042136).

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

20245056104 is a wasteful number, since it uses less digits than its factorization.

20245056104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27250 (or 27246 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 20245056104 in words is "twenty billion, two hundred forty-five million, fifty-six thousand, one hundred four".