108534042565 has 16 divisors (see below), whose sum is σ = 148509931248. Its totient is φ = 75433614336.

The previous prime is 108534042521. The next prime is 108534042653. The reversal of 108534042565 is 565240435801.

It can be written as a sum of positive squares in 8 ways, for example, as 5396077764 + 103137964801 = 73458^2 + 321151^2 .

It is a cyclic number.

It is not a de Polignac number, because 108534042565 - 2⁹ = 108534042053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49109322 + ... + 49111531.

It is an arithmetic number, because the mean of its divisors is an integer number (9281870703).

Almost surely, 2^108534042565 is an apocalyptic number.

It is an amenable number.

108534042565 is a deficient number, since it is larger than the sum of its proper divisors (39975888683).

108534042565 is a wasteful number, since it uses less digits than its factorization.

108534042565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98220888.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 108534042565 in words is "one hundred eight billion, five hundred thirty-four million, forty-two thousand, five hundred sixty-five".