10906997880 has 128 divisors (see below), whose sum is σ = 34489440000. Its totient is φ = 2751750144.

The previous prime is 10906997873. The next prime is 10906997897. The reversal of 10906997880 is 8879960901.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 10906997880.

It is a congruent number.

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, 1955736 + ... + 1961304.

It is an arithmetic number, because the mean of its divisors is an integer number (269448750).

Almost surely, 2^10906997880 is an apocalyptic number.

10906997880 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 10906997880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17244720000).

10906997880 is an abundant number, since it is smaller than the sum of its proper divisors (23582442120).

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

10906997880 is a wasteful number, since it uses less digits than its factorization.

10906997880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461 (or 6457 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The spelling of 10906997880 in words is "ten billion, nine hundred six million, nine hundred ninety-seven thousand, eight hundred eighty".