16382165481 has 48 divisors (see below), whose sum is σ = 28214604288. Its totient is φ = 9043084800.

The previous prime is 16382165467. The next prime is 16382165491. The reversal of 16382165481 is 18456128361.

16382165481 is a `hidden beast` number, since 1 + 6 + 3 + 8 + 2 + 165 + 481 = 666.

It is not a de Polignac number, because 16382165481 - 2⁷ = 16382165353 is a prime.

It is a super-2 number, since 2×16382165481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16382165491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104826 + ... + 209171.

It is an arithmetic number, because the mean of its divisors is an integer number (587804256).

Almost surely, 2^16382165481 is an apocalyptic number.

16382165481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16382165481 is a deficient number, since it is larger than the sum of its proper divisors (11832438807).

16382165481 is a wasteful number, since it uses less digits than its factorization.

16382165481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314062 (or 314059 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 16382165481 in words is "sixteen billion, three hundred eighty-two million, one hundred sixty-five thousand, four hundred eighty-one".