16468591 has 2 divisors, whose sum is σ = 16468592. Its totient is φ = 16468590.

The previous prime is 16468583. The next prime is 16468601. The reversal of 16468591 is 19586461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16468591 - 2³ = 16468583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16468541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8234295 + 8234296.

It is an arithmetic number, because the mean of its divisors is an integer number (8234296).

Almost surely, 2^16468591 is an apocalyptic number.

16468591 is a deficient number, since it is larger than the sum of its proper divisors (1).

16468591 is an equidigital number, since it uses as much as digits as its factorization.

16468591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 16468591 is about 4058.1511800326. The cubic root of 16468591 is about 254.4205270592.

The spelling of 16468591 in words is "sixteen million, four hundred sixty-eight thousand, five hundred ninety-one".