105445202445 has 24 divisors (see below), whose sum is σ = 199387292832. Its totient is φ = 51124946400.

The previous prime is 105445202393. The next prime is 105445202453. The reversal of 105445202445 is 544202544501.

105445202445 is a `hidden beast` number, since 1 + 0 + 5 + 4 + 4 + 5 + 202 + 445 = 666.

It is not a de Polignac number, because 105445202445 - 2⁶ = 105445202381 is a prime.

It is a super-2 number, since 2×105445202445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106509811 + ... + 106510800.

It is an arithmetic number, because the mean of its divisors is an integer number (8307803868).

Almost surely, 2^105445202445 is an apocalyptic number.

105445202445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105445202445 is a deficient number, since it is larger than the sum of its proper divisors (93942090387).

105445202445 is a wasteful number, since it uses less digits than its factorization.

105445202445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213020633 (or 213020630 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 105445202445 its reverse (544202544501), we get a palindrome (649647746946).

The spelling of 105445202445 in words is "one hundred five billion, four hundred forty-five million, two hundred two thousand, four hundred forty-five".