16648507 has 2 divisors, whose sum is σ = 16648508. Its totient is φ = 16648506.

The previous prime is 16648493. The next prime is 16648517. The reversal of 16648507 is 70584661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16648507 is a prime.

It is not a weakly prime, because it can be changed into another prime (16648517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8324253 + 8324254.

It is an arithmetic number, because the mean of its divisors is an integer number (8324254).

Almost surely, 2^16648507 is an apocalyptic number.

16648507 is a deficient number, since it is larger than the sum of its proper divisors (1).

16648507 is an equidigital number, since it uses as much as digits as its factorization.

16648507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 16648507 is about 4080.2582026141. The cubic root of 16648507 is about 255.3436709239.

The spelling of 16648507 in words is "sixteen million, six hundred forty-eight thousand, five hundred seven".