16681380675 has 48 divisors (see below), whose sum is σ = 27823219200. Its totient is φ = 8818503040.

The previous prime is 16681380649. The next prime is 16681380721. The reversal of 16681380675 is 57608318661.

16681380675 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16681380675 - 2¹⁶ = 16681315139 is a prime.

It is a super-2 number, since 2×16681380675² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6558454 + ... + 6560996.

It is an arithmetic number, because the mean of its divisors is an integer number (579650400).

Almost surely, 2^16681380675 is an apocalyptic number.

16681380675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16681380675 is a deficient number, since it is larger than the sum of its proper divisors (11141838525).

16681380675 is a wasteful number, since it uses less digits than its factorization.

16681380675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 16681380675 in words is "sixteen billion, six hundred eighty-one million, three hundred eighty thousand, six hundred seventy-five".