11915069920 has 192 divisors, whose sum is σ = 31960293120. Its totient is φ = 4166443008.

The previous prime is 11915069849. The next prime is 11915069927. The reversal of 11915069920 is 2996051911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11915069927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3195097 + ... + 3198823.

It is an arithmetic number, because the mean of its divisors is an integer number (166459860).

Almost surely, 2^11915069920 is an apocalyptic number.

11915069920 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 11915069920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15980146560).

11915069920 is an abundant number, since it is smaller than the sum of its proper divisors (20045223200).

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

11915069920 is a wasteful number, since it uses less digits than its factorization.

11915069920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837 (or 3829 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 43.

The spelling of 11915069920 in words is "eleven billion, nine hundred fifteen million, sixty-nine thousand, nine hundred twenty".