16464533 has 2 divisors, whose sum is σ = 16464534. Its totient is φ = 16464532.

The previous prime is 16464529. The next prime is 16464557. The reversal of 16464533 is 33546461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15194404 + 1270129 = 3898^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 16464533 - 2² = 16464529 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16464533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16463533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232266 + 8232267.

It is an arithmetic number, because the mean of its divisors is an integer number (8232267).

Almost surely, 2^16464533 is an apocalyptic number.

It is an amenable number.

16464533 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464533 is an equidigital number, since it uses as much as digits as its factorization.

16464533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 16464533 is about 4057.6511678556. The cubic root of 16464533 is about 254.3996282199.

The spelling of 16464533 in words is "sixteen million, four hundred sixty-four thousand, five hundred thirty-three".