9965097254808 has 128 divisors (see below), whose sum is σ = 27735033139200. Its totient is φ = 3315196864512.

The previous prime is 9965097254807. The next prime is 9965097254843. The reversal of 9965097254808 is 8084527905699.

9965097254808 is a `hidden beast` number, since 9 + 9 + 6 + 5 + 0 + 9 + 72 + 548 + 0 + 8 = 666.

It is a super-4 number, since 4×9965097254808⁴ (a number of 53 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9965097254807) 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, 1007894041 + ... + 1007903927.

It is an arithmetic number, because the mean of its divisors is an integer number (216679946400).

Almost surely, 2^{9965097254808} 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 9965097254808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13867516569600).

9965097254808 is an abundant number, since it is smaller than the sum of its proper divisors (17769935884392).

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

9965097254808 is a wasteful number, since it uses less digits than its factorization.

9965097254808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18566 (or 18556 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 72.

The spelling of 9965097254808 in words is "nine trillion, nine hundred sixty-five billion, ninety-seven million, two hundred fifty-four thousand, eight hundred eight".