13345587880 has 16 divisors (see below), whose sum is σ = 30027572820. Its totient is φ = 5338235136.

The previous prime is 13345587841. The next prime is 13345587881. The reversal of 13345587880 is 8878554331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12722486436 + 623101444 = 112794^2 + 24962^2 .

It is not an unprimeable number, because it can be changed into a prime (13345587881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166819809 + ... + 166819888.

Almost surely, 2^13345587880 is an apocalyptic number.

13345587880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13345587880 is an abundant number, since it is smaller than the sum of its proper divisors (16681984940).

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

13345587880 is a wasteful number, since it uses less digits than its factorization.

13345587880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333639708 (or 333639704 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 13345587880 in words is "thirteen billion, three hundred forty-five million, five hundred eighty-seven thousand, eight hundred eighty".