83505510145 has 4 divisors (see below), whose sum is σ = 100206612180. Its totient is φ = 66804408112.

The previous prime is 83505510103. The next prime is 83505510259. The reversal of 83505510145 is 54101550538.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47555833329 + 35949676816 = 218073^2 + 189604^2 .

It is a cyclic number.

It is not a de Polignac number, because 83505510145 - 2¹³ = 83505501953 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 8350551010 + ... + 8350551019.

It is an arithmetic number, because the mean of its divisors is an integer number (25051653045).

Almost surely, 2^83505510145 is an apocalyptic number.

It is an amenable number.

83505510145 is a deficient number, since it is larger than the sum of its proper divisors (16701102035).

83505510145 is a wasteful number, since it uses less digits than its factorization.

83505510145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16701102034.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 83505510145 in words is "eighty-three billion, five hundred five million, five hundred ten thousand, one hundred forty-five".