16297149887 has 2 divisors, whose sum is σ = 16297149888. Its totient is φ = 16297149886.

The previous prime is 16297149877. The next prime is 16297149893. The reversal of 16297149887 is 78894179261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16297149887 - 2⁴ = 16297149871 is a prime.

It is a super-2 number, since 2×16297149887² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16297149877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8148574943 + 8148574944.

It is an arithmetic number, because the mean of its divisors is an integer number (8148574944).

Almost surely, 2^16297149887 is an apocalyptic number.

16297149887 is a deficient number, since it is larger than the sum of its proper divisors (1).

16297149887 is an equidigital number, since it uses as much as digits as its factorization.

16297149887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 62.

The spelling of 16297149887 in words is "sixteen billion, two hundred ninety-seven million, one hundred forty-nine thousand, eight hundred eighty-seven".