16117884631 has 2 divisors, whose sum is σ = 16117884632. Its totient is φ = 16117884630.

The previous prime is 16117884613. The next prime is 16117884677. The reversal of 16117884631 is 13648871161.

Together with previous prime (16117884613) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (16117884677) can be obtained adding 16117884631 to its sum of digits (46).

It is a weak prime.

It is an emirp because it is prime and its reverse (13648871161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16117884631 - 2¹⁵ = 16117851863 is a prime.

It is a super-2 number, since 2×16117884631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16117884691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8058942315 + 8058942316.

It is an arithmetic number, because the mean of its divisors is an integer number (8058942316).

Almost surely, 2^16117884631 is an apocalyptic number.

16117884631 is a deficient number, since it is larger than the sum of its proper divisors (1).

16117884631 is an equidigital number, since it uses as much as digits as its factorization.

16117884631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The spelling of 16117884631 in words is "sixteen billion, one hundred seventeen million, eight hundred eighty-four thousand, six hundred thirty-one".