16725671775 has 36 divisors (see below), whose sum is σ = 31067086232. Its totient is φ = 8920355040.

The previous prime is 16725671761. The next prime is 16725671777. The reversal of 16725671775 is 57717652761.

16725671775 is a `hidden beast` number, since 1 + 6 + 7 + 2 + 567 + 1 + 7 + 75 = 666.

It is not a de Polignac number, because 16725671775 - 2⁴ = 16725671759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725671777) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1370524 + ... + 1382673.

Almost surely, 2^16725671775 is an apocalyptic number.

16725671775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16725671775 is a deficient number, since it is larger than the sum of its proper divisors (14341414457).

16725671775 is an equidigital number, since it uses as much as digits as its factorization.

16725671775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753222 (or 2753205 counting only the distinct ones).

The product of its digits is 4321800, while the sum is 54.

The spelling of 16725671775 in words is "sixteen billion, seven hundred twenty-five million, six hundred seventy-one thousand, seven hundred seventy-five".