13166606687520 has 384 divisors, whose sum is σ = 48737310225408. Its totient is φ = 2945668608000.

The previous prime is 13166606687519. The next prime is 13166606687539. The reversal of 13166606687520 is 2578660666131.

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 63 ways as a sum of consecutive naturals, for example, 319224019 + ... + 319265261.

It is an arithmetic number, because the mean of its divisors is an integer number (126920078712).

Almost surely, 2^{13166606687520} is an apocalyptic number.

13166606687520 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 13166606687520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24368655112704).

13166606687520 is an abundant number, since it is smaller than the sum of its proper divisors (35570703537888).

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

13166606687520 is a wasteful number, since it uses less digits than its factorization.

13166606687520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45936 (or 45928 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 13166606687520 in words is "thirteen trillion, one hundred sixty-six billion, six hundred six million, six hundred eighty-seven thousand, five hundred twenty".