16123615881847 has 2 divisors, whose sum is σ = 16123615881848. Its totient is φ = 16123615881846.

The previous prime is 16123615881761. The next prime is 16123615881851. The reversal of 16123615881847 is 74818851632161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16123615881847 - 2¹⁵ = 16123615849079 is a prime.

It is a super-2 number, since 2×16123615881847² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16123615821847) 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, 8061807940923 + 8061807940924.

It is an arithmetic number, because the mean of its divisors is an integer number (8061807940924).

Almost surely, 2^{16123615881847} is an apocalyptic number.

16123615881847 is a deficient number, since it is larger than the sum of its proper divisors (1).

16123615881847 is an equidigital number, since it uses as much as digits as its factorization.

16123615881847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15482880, while the sum is 61.

The spelling of 16123615881847 in words is "sixteen trillion, one hundred twenty-three billion, six hundred fifteen million, eight hundred eighty-one thousand, eight hundred forty-seven".