16199800651 has 2 divisors, whose sum is σ = 16199800652. Its totient is φ = 16199800650.

The previous prime is 16199800637. The next prime is 16199800679. The reversal of 16199800651 is 15600899161.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15600899161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16199800651 - 2¹⁹ = 16199276363 is a prime.

It is a super-2 number, since 2×16199800651² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16199807651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8099900325 + 8099900326.

It is an arithmetic number, because the mean of its divisors is an integer number (8099900326).

Almost surely, 2^16199800651 is an apocalyptic number.

16199800651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16199800651 is an equidigital number, since it uses as much as digits as its factorization.

16199800651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 46.

The spelling of 16199800651 in words is "sixteen billion, one hundred ninety-nine million, eight hundred thousand, six hundred fifty-one".