13377172605218 has 8 divisors (see below), whose sum is σ = 20067701225040. Its totient is φ = 6687938863540.

The previous prime is 13377172605193. The next prime is 13377172605229. The reversal of 13377172605218 is 81250627177331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13377172605218.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323693708 + ... + 323735031.

It is an arithmetic number, because the mean of its divisors is an integer number (2508462653130).

Almost surely, 2^{13377172605218} is an apocalyptic number.

13377172605218 is a deficient number, since it is larger than the sum of its proper divisors (6690528619822).

13377172605218 is a wasteful number, since it uses less digits than its factorization.

13377172605218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647439072.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 13377172605218 in words is "thirteen trillion, three hundred seventy-seven billion, one hundred seventy-two million, six hundred five thousand, two hundred eighteen".