36556144645 has 8 divisors (see below), whose sum is σ = 43869881880. Its totient is φ = 29243243520.

The previous prime is 36556144631. The next prime is 36556144673. The reversal of 36556144645 is 54644165563.

It can be written as a sum of positive squares in 4 ways, for example, as 25370755524 + 11185389121 = 159282^2 + 105761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36556144645 - 2⁵ = 36556144613 is a prime.

It is a super-2 number, since 2×36556144645² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108436 + ... + 291325.

It is an arithmetic number, because the mean of its divisors is an integer number (5483735235).

Almost surely, 2^36556144645 is an apocalyptic number.

It is an amenable number.

36556144645 is a deficient number, since it is larger than the sum of its proper divisors (7313737235).

36556144645 is a wasteful number, since it uses less digits than its factorization.

36556144645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418055.

The product of its digits is 5184000, while the sum is 49.

The spelling of 36556144645 in words is "thirty-six billion, five hundred fifty-six million, one hundred forty-four thousand, six hundred forty-five".