15380333680 has 40 divisors (see below), whose sum is σ = 37314031392. Its totient is φ = 5884648704.

The previous prime is 15380333669. The next prime is 15380333681. The reversal of 15380333680 is 8633308351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15380333681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4177599 + ... + 4181278.

Almost surely, 2^15380333680 is an apocalyptic number.

15380333680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15380333680 is an abundant number, since it is smaller than the sum of its proper divisors (21933697712).

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

15380333680 is a wasteful number, since it uses less digits than its factorization.

15380333680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358913 (or 8358907 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 15380333680 in words is "fifteen billion, three hundred eighty million, three hundred thirty-three thousand, six hundred eighty".