11665611474000 has 320 divisors, whose sum is σ = 41145327744768. Its totient is φ = 2820009984000.

The previous prime is 11665611473981. The next prime is 11665611474029. The reversal of 11665611474000 is 47411656611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23047644 + ... + 23548356.

Almost surely, 2^{11665611474000} is an apocalyptic number.

11665611474000 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 11665611474000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20572663872384).

11665611474000 is an abundant number, since it is smaller than the sum of its proper divisors (29479716270768).

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

11665611474000 is a wasteful number, since it uses less digits than its factorization.

11665611474000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501103 (or 501087 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 11665611474000 in words is "eleven trillion, six hundred sixty-five billion, six hundred eleven million, four hundred seventy-four thousand".