105405299999 has 4 divisors (see below), whose sum is σ = 105547933080. Its totient is φ = 105262666920.

The previous prime is 105405299953. The next prime is 105405300001. The reversal of 105405299999 is 999992504501.

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 105405299999 - 2³⁶ = 36685823263 is a prime.

It is a super-2 number, since 2×105405299999² (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 (105405299929) 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 3 ways as a sum of consecutive naturals, for example, 71315432 + ... + 71316909.

It is an arithmetic number, because the mean of its divisors is an integer number (26386983270).

Almost surely, 2^105405299999 is an apocalyptic number.

105405299999 is a deficient number, since it is larger than the sum of its proper divisors (142633081).

105405299999 is an equidigital number, since it uses as much as digits as its factorization.

105405299999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142633080.

The product of its (nonzero) digits is 11809800, while the sum is 62.

The spelling of 105405299999 in words is "one hundred five billion, four hundred five million, two hundred ninety-nine thousand, nine hundred ninety-nine".