16677777131225 has 48 divisors (see below), whose sum is σ = 23705994719232. Its totient is φ = 11401784074560.

The previous prime is 16677777131207. The next prime is 16677777131237. The reversal of 16677777131225 is 52213177777661.

It is a happy number.

It is not a de Polignac number, because 16677777131225 - 2²⁶ = 16677710022361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86432204 + ... + 86624946.

It is an arithmetic number, because the mean of its divisors is an integer number (493874889984).

Almost surely, 2^{16677777131225} is an apocalyptic number.

It is an amenable number.

16677777131225 is a deficient number, since it is larger than the sum of its proper divisors (7028217588007).

16677777131225 is a wasteful number, since it uses less digits than its factorization.

16677777131225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194246 (or 194241 counting only the distinct ones).

The product of its digits is 36303120, while the sum is 62.

The spelling of 16677777131225 in words is "sixteen trillion, six hundred seventy-seven billion, seven hundred seventy-seven million, one hundred thirty-one thousand, two hundred twenty-five".