36115220173 has 4 divisors (see below), whose sum is σ = 36119310300. Its totient is φ = 36111130048.

The previous prime is 36115220171. The next prime is 36115220201. The reversal of 36115220173 is 37102251163.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37102251163 = 283 ⋅131103361.

It can be written as a sum of positive squares in 2 ways, for example, as 11703345124 + 24411875049 = 108182^2 + 156243^2 .

It is a cyclic number.

It is not a de Polignac number, because 36115220173 - 2¹ = 36115220171 is a prime.

It is a super-2 number, since 2×36115220173² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36115220171) 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, 2031790 + ... + 2049487.

It is an arithmetic number, because the mean of its divisors is an integer number (9029827575).

Almost surely, 2^36115220173 is an apocalyptic number.

It is an amenable number.

36115220173 is a deficient number, since it is larger than the sum of its proper divisors (4090127).

36115220173 is an equidigital number, since it uses as much as digits as its factorization.

36115220173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090126.

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 36115220173 in words is "thirty-six billion, one hundred fifteen million, two hundred twenty thousand, one hundred seventy-three".