13980557169 has 12 divisors (see below), whose sum is σ = 20219486196. Its totient is φ = 9308672352.

The previous prime is 13980557117. The next prime is 13980557179. The reversal of 13980557169 is 96175508931.

13980557169 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 0 + 5 + 571 + 69 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6199200225 + 7781356944 = 78735^2 + 88212^2 .

It is not a de Polignac number, because 13980557169 - 2⁹ = 13980556657 is a prime.

It is a super-2 number, since 2×13980557169² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13980557179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 967354 + ... + 981699.

It is an arithmetic number, because the mean of its divisors is an integer number (1684957183).

Almost surely, 2^13980557169 is an apocalyptic number.

It is an amenable number.

13980557169 is a deficient number, since it is larger than the sum of its proper divisors (6238929027).

13980557169 is a wasteful number, since it uses less digits than its factorization.

13980557169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949856 (or 1949853 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 13980557169 in words is "thirteen billion, nine hundred eighty million, five hundred fifty-seven thousand, one hundred sixty-nine".