13660877880 has 256 divisors, whose sum is σ = 50622566400. Its totient is φ = 3254100480.

The previous prime is 13660877873. The next prime is 13660877891. The reversal of 13660877880 is 8877806631.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 419547 + ... + 450933.

It is an arithmetic number, because the mean of its divisors is an integer number (197744400).

Almost surely, 2^13660877880 is an apocalyptic number.

13660877880 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 13660877880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25311283200).

13660877880 is an abundant number, since it is smaller than the sum of its proper divisors (36961688520).

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

13660877880 is a wasteful number, since it uses less digits than its factorization.

13660877880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31451 (or 31441 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 13660877880 in words is "thirteen billion, six hundred sixty million, eight hundred seventy-seven thousand, eight hundred eighty".