105011665 has 12 divisors (see below), whose sum is σ = 138512052. Its totient is φ = 76371680.

The previous prime is 105011659. The next prime is 105011707. The reversal of 105011665 is 566110501.

It can be written as a sum of positive squares in 2 ways, for example, as 12159169 + 92852496 = 3487^2 + 9636^2 .

It is not a de Polignac number, because 105011665 - 2¹⁵ = 104978897 is a prime.

It is a super-2 number, since 2×105011665² = 22054899572144450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86182 + ... + 87391.

It is an arithmetic number, because the mean of its divisors is an integer number (11542671).

Almost surely, 2^105011665 is an apocalyptic number.

It is an amenable number.

105011665 is a deficient number, since it is larger than the sum of its proper divisors (33500387).

105011665 is a wasteful number, since it uses less digits than its factorization.

105011665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173600 (or 173589 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 105011665 is about 10247.5199438693. The cubic root of 105011665 is about 471.7868678293.

The spelling of 105011665 in words is "one hundred five million, eleven thousand, six hundred sixty-five".