16565229105 has 32 divisors (see below), whose sum is σ = 27071625600. Its totient is φ = 8647014912.

The previous prime is 16565229103. The next prime is 16565229127. The reversal of 16565229105 is 50192256561.

It is not a de Polignac number, because 16565229105 - 2¹ = 16565229103 is a prime.

It is a super-2 number, since 2×16565229105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16565229103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161797 + ... + 243533.

It is an arithmetic number, because the mean of its divisors is an integer number (845988300).

Almost surely, 2^16565229105 is an apocalyptic number.

16565229105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16565229105 is a deficient number, since it is larger than the sum of its proper divisors (10506396495).

16565229105 is a wasteful number, since it uses less digits than its factorization.

16565229105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82033.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 16565229105 in words is "sixteen billion, five hundred sixty-five million, two hundred twenty-nine thousand, one hundred five".