13345677172 has 6 divisors (see below), whose sum is σ = 23354935058. Its totient is φ = 6672838584.

The previous prime is 13345677167. The next prime is 13345677179. The reversal of 13345677172 is 27177654331.

It can be written as a sum of positive squares in only one way, i.e., 13196495376 + 149181796 = 114876^2 + 12214^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13345677179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1668209643 + ... + 1668209650.

Almost surely, 2^13345677172 is an apocalyptic number.

It is an amenable number.

13345677172 is a deficient number, since it is larger than the sum of its proper divisors (10009257886).

13345677172 is a wasteful number, since it uses less digits than its factorization.

13345677172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336419297 (or 3336419295 counting only the distinct ones).

The product of its digits is 740880, while the sum is 46.

The spelling of 13345677172 in words is "thirteen billion, three hundred forty-five million, six hundred seventy-seven thousand, one hundred seventy-two".