11915007683520 has 224 divisors, whose sum is σ = 38336439456000. Its totient is φ = 3134913372160.

The previous prime is 11915007683473. The next prime is 11915007683533. The reversal of 11915007683520 is 2538670051911.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11915007683520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60538231 + ... + 60734729.

It is an arithmetic number, because the mean of its divisors is an integer number (171144819000).

Almost surely, 2^{11915007683520} is an apocalyptic number.

11915007683520 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 11915007683520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19168219728000).

11915007683520 is an abundant number, since it is smaller than the sum of its proper divisors (26421431772480).

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

11915007683520 is a wasteful number, since it uses less digits than its factorization.

11915007683520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197363 (or 197353 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 11915007683520 in words is "eleven trillion, nine hundred fifteen billion, seven million, six hundred eighty-three thousand, five hundred twenty".