16530510775 has 6 divisors (see below), whose sum is σ = 20497833392. Its totient is φ = 13224408600.

The previous prime is 16530510727. The next prime is 16530510781. The reversal of 16530510775 is 57701503561.

It is not a de Polignac number, because 16530510775 - 2⁹ = 16530510263 is a prime.

It is a super-2 number, since 2×16530510775² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330610191 + ... + 330610240.

Almost surely, 2^16530510775 is an apocalyptic number.

16530510775 is a deficient number, since it is larger than the sum of its proper divisors (3967322617).

16530510775 is an equidigital number, since it uses as much as digits as its factorization.

16530510775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661220441 (or 661220436 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 40.

The spelling of 16530510775 in words is "sixteen billion, five hundred thirty million, five hundred ten thousand, seven hundred seventy-five".