36155855845 has 4 divisors (see below), whose sum is σ = 43387027020. Its totient is φ = 28924684672.

The previous prime is 36155855809. The next prime is 36155855849. The reversal of 36155855845 is 54855855163.

36155855845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17280942849 + 18874912996 = 131457^2 + 137386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36155855845 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36155855849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3615585580 + ... + 3615585589.

It is an arithmetic number, because the mean of its divisors is an integer number (10846756755).

Almost surely, 2^36155855845 is an apocalyptic number.

It is an amenable number.

36155855845 is a deficient number, since it is larger than the sum of its proper divisors (7231171175).

36155855845 is an equidigital number, since it uses as much as digits as its factorization.

36155855845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231171174.

The product of its digits is 14400000, while the sum is 55.

The spelling of 36155855845 in words is "thirty-six billion, one hundred fifty-five million, eight hundred fifty-five thousand, eight hundred forty-five".