16129666875 has 90 divisors (see below), whose sum is σ = 31336584708. Its totient is φ = 7355964000.

The previous prime is 16129666873. The next prime is 16129666879. The reversal of 16129666875 is 57866692161.

It is not a de Polignac number, because 16129666875 - 2¹ = 16129666873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16129666873) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 38495416 + ... + 38495834.

Almost surely, 2^16129666875 is an apocalyptic number.

16129666875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16129666875 is a deficient number, since it is larger than the sum of its proper divisors (15206917833).

16129666875 is an frugal number, since it uses more digits than its factorization.

16129666875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 434 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 57.

The spelling of 16129666875 in words is "sixteen billion, one hundred twenty-nine million, six hundred sixty-six thousand, eight hundred seventy-five".