106165165999 has 4 divisors (see below), whose sum is σ = 106289046864. Its totient is φ = 106041285136.

The previous prime is 106165165973. The next prime is 106165166017. The reversal of 106165165999 is 999561561601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106165165999 - 2¹⁵ = 106165133231 is a prime.

It is a super-2 number, since 2×106165165999² (a number of 23 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 (106165165399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61939147 + ... + 61940860.

It is an arithmetic number, because the mean of its divisors is an integer number (26572261716).

Almost surely, 2^106165165999 is an apocalyptic number.

106165165999 is a deficient number, since it is larger than the sum of its proper divisors (123880865).

106165165999 is an equidigital number, since it uses as much as digits as its factorization.

106165165999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123880864.

The product of its (nonzero) digits is 3936600, while the sum is 58.

The spelling of 106165165999 in words is "one hundred six billion, one hundred sixty-five million, one hundred sixty-five thousand, nine hundred ninety-nine".