20245695184 has 160 divisors (see below), whose sum is σ = 47876935680. Its totient is φ = 8170483200.

The previous prime is 20245695181. The next prime is 20245695229. The reversal of 20245695184 is 48159654202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245695181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6343029 + ... + 6346219.

It is an arithmetic number, because the mean of its divisors is an integer number (299230848).

Almost surely, 2^20245695184 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 20245695184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23938467840).

20245695184 is an abundant number, since it is smaller than the sum of its proper divisors (27631240496).

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

20245695184 is a wasteful number, since it uses less digits than its factorization.

20245695184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 20245695184 in words is "twenty billion, two hundred forty-five million, six hundred ninety-five thousand, one hundred eighty-four".