11731646080 has 256 divisors, whose sum is σ = 36176544000. Its totient is φ = 3530096640.

The previous prime is 11731645951. The next prime is 11731646111. The reversal of 11731646080 is 8064613711.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1425016 + ... + 1433224.

It is an arithmetic number, because the mean of its divisors is an integer number (141314625).

Almost surely, 2^11731646080 is an apocalyptic number.

11731646080 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 11731646080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18088272000).

11731646080 is an abundant number, since it is smaller than the sum of its proper divisors (24444897920).

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

11731646080 is a wasteful number, since it uses less digits than its factorization.

11731646080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275 (or 8263 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 11731646080 in words is "eleven billion, seven hundred thirty-one million, six hundred forty-six thousand, eighty".