16358213365 has 16 divisors (see below), whose sum is σ = 22383366768. Its totient is φ = 11369327616.

The previous prime is 16358213363. The next prime is 16358213369. The reversal of 16358213365 is 56331285361.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 781426116 + 15576787249 = 27954^2 + 124807^2 .

It is a cyclic number.

It is not a de Polignac number, because 16358213365 - 2¹ = 16358213363 is a prime.

It is a super-2 number, since 2×16358213365² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16358213363) 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 in 15 ways as a sum of consecutive naturals, for example, 7400802 + ... + 7403011.

It is an arithmetic number, because the mean of its divisors is an integer number (1398960423).

Almost surely, 2^16358213365 is an apocalyptic number.

It is an amenable number.

16358213365 is a deficient number, since it is larger than the sum of its proper divisors (6025153403).

16358213365 is a wasteful number, since it uses less digits than its factorization.

16358213365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14803848.

The product of its digits is 388800, while the sum is 43.

The spelling of 16358213365 in words is "sixteen billion, three hundred fifty-eight million, two hundred thirteen thousand, three hundred sixty-five".