105445566645 has 16 divisors (see below), whose sum is σ = 168721086912. Its totient is φ = 56234908800.

The previous prime is 105445566557. The next prime is 105445566679. The reversal of 105445566645 is 546665544501.

It is not a de Polignac number, because 105445566645 - 2²² = 105441372341 is a prime.

It is a super-2 number, since 2×105445566645² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171369 + ... + 490161.

It is an arithmetic number, because the mean of its divisors is an integer number (10545067932).

Almost surely, 2^105445566645 is an apocalyptic number.

105445566645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105445566645 is a deficient number, since it is larger than the sum of its proper divisors (63275520267).

105445566645 is a wasteful number, since it uses less digits than its factorization.

105445566645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340852.

The product of its (nonzero) digits is 8640000, while the sum is 51.

The spelling of 105445566645 in words is "one hundred five billion, four hundred forty-five million, five hundred sixty-six thousand, six hundred forty-five".