12091562496 has 320 divisors, whose sum is σ = 39212490240. Its totient is φ = 3656171520.

The previous prime is 12091562491. The next prime is 12091562501. The reversal of 12091562496 is 69426519021.

12091562496 is a `hidden beast` number, since 1 + 2 + 0 + 9 + 15 + 624 + 9 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (12091562491) and next prime (12091562501).

It is not an unprimeable number, because it can be changed into a prime (12091562491) 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 31 ways as a sum of consecutive naturals, for example, 10961881 + ... + 10962983.

It is an arithmetic number, because the mean of its divisors is an integer number (122539032).

Almost surely, 2^12091562496 is an apocalyptic number.

12091562496 is a gapful number since it is divisible by the number (16) 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 12091562496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19606245120).

12091562496 is an abundant number, since it is smaller than the sum of its proper divisors (27120927744).

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

12091562496 is a wasteful number, since it uses less digits than its factorization.

12091562496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 12091562496 in words is "twelve billion, ninety-one million, five hundred sixty-two thousand, four hundred ninety-six".