16195651 has 2 divisors, whose sum is σ = 16195652. Its totient is φ = 16195650.

The previous prime is 16195643. The next prime is 16195667. The reversal of 16195651 is 15659161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16195651 - 2³ = 16195643 is a prime.

It is a super-2 number, since 2×16195651² = 524598222627602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16195631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8097825 + 8097826.

It is an arithmetic number, because the mean of its divisors is an integer number (8097826).

Almost surely, 2^16195651 is an apocalyptic number.

16195651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16195651 is an equidigital number, since it uses as much as digits as its factorization.

16195651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 34.

The square root of 16195651 is about 4024.3820643671. The cubic root of 16195651 is about 253.0071550414.

The spelling of 16195651 in words is "sixteen million, one hundred ninety-five thousand, six hundred fifty-one".