245420016656 has 80 divisors (see below), whose sum is σ = 513232329600. Its totient is φ = 113255061504.

The previous prime is 245420016637. The next prime is 245420016659. The reversal of 245420016656 is 656610024542.

It is not an unprimeable number, because it can be changed into a prime (245420016659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43519085 + ... + 43524723.

It is an arithmetic number, because the mean of its divisors is an integer number (6415404120).

Almost surely, 2^245420016656 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 245420016656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256616164800).

245420016656 is an abundant number, since it is smaller than the sum of its proper divisors (267812312944).

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

245420016656 is a wasteful number, since it uses less digits than its factorization.

245420016656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8736 (or 8730 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 245420016656 in words is "two hundred forty-five billion, four hundred twenty million, sixteen thousand, six hundred fifty-six".