11659327974 has 256 divisors, whose sum is σ = 32726384640. Its totient is φ = 3000291840.

The previous prime is 11659327963. The next prime is 11659328033. The reversal of 11659327974 is 47972395611.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2857680) is a multiple of the sum of its prime factors (720).

It is a self number, because there is not a number n which added to its sum of digits gives 11659327974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21314769 + ... + 21315315.

It is an arithmetic number, because the mean of its divisors is an integer number (127837440).

Almost surely, 2^11659327974 is an apocalyptic number.

11659327974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11659327974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16363192320).

11659327974 is an abundant number, since it is smaller than the sum of its proper divisors (21067056666).

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

11659327974 is a wasteful number, since it uses less digits than its factorization.

11659327974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 714 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The spelling of 11659327974 in words is "eleven billion, six hundred fifty-nine million, three hundred twenty-seven thousand, nine hundred seventy-four".