36553727661 has 64 divisors (see below), whose sum is σ = 56166359040. Its totient is φ = 20929979840.

The previous prime is 36553727633. The next prime is 36553727663. The reversal of 36553727661 is 16672735563.

It is not a de Polignac number, because 36553727661 - 2⁶ = 36553727597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36553727663) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 53519026 + ... + 53519708.

It is an arithmetic number, because the mean of its divisors is an integer number (877599360).

Almost surely, 2^36553727661 is an apocalyptic number.

It is an amenable number.

36553727661 is a deficient number, since it is larger than the sum of its proper divisors (19612631379).

36553727661 is a wasteful number, since it uses less digits than its factorization.

36553727661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its digits is 4762800, while the sum is 51.

The spelling of 36553727661 in words is "thirty-six billion, five hundred fifty-three million, seven hundred twenty-seven thousand, six hundred sixty-one".