105665303253 has 16 divisors (see below), whose sum is σ = 141648915456. Its totient is φ = 70062740160.

The previous prime is 105665303209. The next prime is 105665303257. The reversal of 105665303253 is 352303566501.

It is not a de Polignac number, because 105665303253 - 2⁶ = 105665303189 is a prime.

It is a super-2 number, since 2×105665303253² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105665303257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4432875 + ... + 4456647.

It is an arithmetic number, because the mean of its divisors is an integer number (8853057216).

Almost surely, 2^105665303253 is an apocalyptic number.

It is an amenable number.

105665303253 is a deficient number, since it is larger than the sum of its proper divisors (35983612203).

105665303253 is a wasteful number, since it uses less digits than its factorization.

105665303253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31724.

The product of its (nonzero) digits is 243000, while the sum is 39.

Adding to 105665303253 its reverse (352303566501), we get a palindrome (457968869754).

The spelling of 105665303253 in words is "one hundred five billion, six hundred sixty-five million, three hundred three thousand, two hundred fifty-three".