9161422560 has 288 divisors, whose sum is σ = 33678747648. Its totient is φ = 2261191680.

The previous prime is 9161422541. The next prime is 9161422607. The reversal of 9161422560 is 652241619.

9161422560 is a `hidden beast` number, since 91 + 6 + 1 + 4 + 2 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1022259 + ... + 1031181.

It is an arithmetic number, because the mean of its divisors is an integer number (116940096).

Almost surely, 2^9161422560 is an apocalyptic number.

9161422560 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9161422560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16839373824).

9161422560 is an abundant number, since it is smaller than the sum of its proper divisors (24517325088).

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

9161422560 is a wasteful number, since it uses less digits than its factorization.

9161422560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8998 (or 8987 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 9161422560 is about 95715.3204037891. The cubic root of 9161422560 is about 2092.4462219021.

The spelling of 9161422560 in words is "nine billion, one hundred sixty-one million, four hundred twenty-two thousand, five hundred sixty".