16031624891 has 2 divisors, whose sum is σ = 16031624892. Its totient is φ = 16031624890.

The previous prime is 16031624789. The next prime is 16031624911. The reversal of 16031624891 is 19842613061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16031624891 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16031624591) 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, 8015812445 + 8015812446.

It is an arithmetic number, because the mean of its divisors is an integer number (8015812446).

Almost surely, 2^16031624891 is an apocalyptic number.

16031624891 is a deficient number, since it is larger than the sum of its proper divisors (1).

16031624891 is an equidigital number, since it uses as much as digits as its factorization.

16031624891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 16031624891 in words is "sixteen billion, thirty-one million, six hundred twenty-four thousand, eight hundred ninety-one".