36544434661 has 36 divisors (see below), whose sum is σ = 44839837056. Its totient is φ = 29665666800.

The previous prime is 36544434631. The next prime is 36544434671. The reversal of 36544434661 is 16643444563.

It is not a de Polignac number, because 36544434661 - 2⁷ = 36544434533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36544434631) 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 35 ways as a sum of consecutive naturals, for example, 3350026 + ... + 3360916.

Almost surely, 2^36544434661 is an apocalyptic number.

36544434661 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36544434661 is a deficient number, since it is larger than the sum of its proper divisors (8295402395).

36544434661 is a wasteful number, since it uses less digits than its factorization.

36544434661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11030 (or 10976 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 46.

The spelling of 36544434661 in words is "thirty-six billion, five hundred forty-four million, four hundred thirty-four thousand, six hundred sixty-one".