11906640320 has 112 divisors (see below), whose sum is σ = 29979884160. Its totient is φ = 4491592704.

The previous prime is 11906640307. The next prime is 11906640379. The reversal of 11906640320 is 2304660911.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375847 + ... + 1384473.

Almost surely, 2^11906640320 is an apocalyptic number.

11906640320 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 11906640320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14989942080).

11906640320 is an abundant number, since it is smaller than the sum of its proper divisors (18073243840).

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

11906640320 is a wasteful number, since it uses less digits than its factorization.

11906640320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8890 (or 8880 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 11906640320 in words is "eleven billion, nine hundred six million, six hundred forty thousand, three hundred twenty".