11718710640 has 1200 divisors, whose sum is σ = 54310398912. Its totient is φ = 2313142272.

The previous prime is 11718710639. The next prime is 11718710681. The reversal of 11718710640 is 4601781711.

11718710640 is a `hidden beast` number, since 1 + 1 + 7 + 1 + 8 + 7 + 1 + 0 + 640 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 11718710595 and 11718710604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 70171837 + ... + 70172003.

Almost surely, 2^11718710640 is an apocalyptic number.

11718710640 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 11718710640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27155199456).

11718710640 is an abundant number, since it is smaller than the sum of its proper divisors (42591688272).

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

11718710640 is a wasteful number, since it uses less digits than its factorization.

11718710640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The spelling of 11718710640 in words is "eleven billion, seven hundred eighteen million, seven hundred ten thousand, six hundred forty".