16540593847 has 2 divisors, whose sum is σ = 16540593848. Its totient is φ = 16540593846.

The previous prime is 16540593791. The next prime is 16540593869. The reversal of 16540593847 is 74839504561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16540593847 is a prime.

It is a super-2 number, since 2×16540593847² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16540593794 and 16540593803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16540593877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270296923 + 8270296924.

It is an arithmetic number, because the mean of its divisors is an integer number (8270296924).

Almost surely, 2^16540593847 is an apocalyptic number.

16540593847 is a deficient number, since it is larger than the sum of its proper divisors (1).

16540593847 is an equidigital number, since it uses as much as digits as its factorization.

16540593847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 16540593847 in words is "sixteen billion, five hundred forty million, five hundred ninety-three thousand, eight hundred forty-seven".