11626016640 has 256 divisors, whose sum is σ = 43339000320. Its totient is φ = 2595446784.

The previous prime is 11626016617. The next prime is 11626016651. The reversal of 11626016640 is 4661062611.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 567862 + ... + 587978.

It is an arithmetic number, because the mean of its divisors is an integer number (169292970).

Almost surely, 2^11626016640 is an apocalyptic number.

11626016640 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 11626016640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21669500160).

11626016640 is an abundant number, since it is smaller than the sum of its proper divisors (31712983680).

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

11626016640 is a wasteful number, since it uses less digits than its factorization.

11626016640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20189 (or 20177 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 11626016640 in words is "eleven billion, six hundred twenty-six million, sixteen thousand, six hundred forty".