11997290160 has 320 divisors, whose sum is σ = 42997248000. Its totient is φ = 3071416320.

The previous prime is 11997290119. The next prime is 11997290161. The reversal of 11997290160 is 6109279911.

11997290160 is a `hidden beast` number, since 119 + 97 + 290 + 160 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (11997290161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9306796 + ... + 9308084.

It is an arithmetic number, because the mean of its divisors is an integer number (134366400).

Almost surely, 2^11997290160 is an apocalyptic number.

11997290160 is a gapful number since it is divisible by the number (10) 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 11997290160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21498624000).

11997290160 is an abundant number, since it is smaller than the sum of its proper divisors (30999957840).

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

11997290160 is a wasteful number, since it uses less digits than its factorization.

11997290160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 45.

The spelling of 11997290160 in words is "eleven billion, nine hundred ninety-seven million, two hundred ninety thousand, one hundred sixty".