105166665515 has 8 divisors (see below), whose sum is σ = 126581269488. Its totient is φ = 83879151840.

The previous prime is 105166665479. The next prime is 105166665533. The reversal of 105166665515 is 515566661501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105166665515 - 2⁶ = 105166665451 is a prime.

It is a super-2 number, since 2×105166665515² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105166665515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31770752 + ... + 31774061.

It is an arithmetic number, because the mean of its divisors is an integer number (15822658686).

Almost surely, 2^105166665515 is an apocalyptic number.

105166665515 is a deficient number, since it is larger than the sum of its proper divisors (21414603973).

105166665515 is an equidigital number, since it uses as much as digits as its factorization.

105166665515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63545149.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 105166665515 in words is "one hundred five billion, one hundred sixty-six million, six hundred sixty-five thousand, five hundred fifteen".