9161925656576 has 1224 divisors, whose sum is σ = 26470816046640. Its totient is φ = 3139184885760.

The previous prime is 9161925656537. The next prime is 9161925656579. The reversal of 9161925656576 is 6756565291619.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is not an unprimeable number, because it can be changed into a prime (9161925656579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 125505830876 + ... + 125505830948.

Almost surely, 2^{9161925656576} 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 9161925656576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13235408023320).

9161925656576 is an abundant number, since it is smaller than the sum of its proper divisors (17308890390064).

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

9161925656576 is a wasteful number, since it uses less digits than its factorization.

9161925656576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 129 counting only the distinct ones).

The product of its digits is 183708000, while the sum is 68.

The spelling of 9161925656576 in words is "nine trillion, one hundred sixty-one billion, nine hundred twenty-five million, six hundred fifty-six thousand, five hundred seventy-six".