16373638507 has 2 divisors, whose sum is σ = 16373638508. Its totient is φ = 16373638506.

The previous prime is 16373638481. The next prime is 16373638511. The reversal of 16373638507 is 70583637361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16373638507 is a prime.

It is not a weakly prime, because it can be changed into another prime (16373638577) 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, 8186819253 + 8186819254.

It is an arithmetic number, because the mean of its divisors is an integer number (8186819254).

Almost surely, 2^16373638507 is an apocalyptic number.

16373638507 is a deficient number, since it is larger than the sum of its proper divisors (1).

16373638507 is an equidigital number, since it uses as much as digits as its factorization.

16373638507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 16373638507 in words is "sixteen billion, three hundred seventy-three million, six hundred thirty-eight thousand, five hundred seven".