13018666680 has 192 divisors, whose sum is σ = 43967064960. Its totient is φ = 3464581248.

The previous prime is 13018666673. The next prime is 13018666693. The reversal of 13018666680 is 8666681031.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6248919 + ... + 6251001.

It is an arithmetic number, because the mean of its divisors is an integer number (228995130).

Almost surely, 2^13018666680 is an apocalyptic number.

13018666680 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 13018666680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21983532480).

13018666680 is an abundant number, since it is smaller than the sum of its proper divisors (30948398280).

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

13018666680 is a wasteful number, since it uses less digits than its factorization.

13018666680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 13018666680 in words is "thirteen billion, eighteen million, six hundred sixty-six thousand, six hundred eighty".