36665550561044 has 6 divisors (see below), whose sum is σ = 64164713481834. Its totient is φ = 18332775280520.

The previous prime is 36665550561043. The next prime is 36665550561067. The reversal of 36665550561044 is 44016505556663.

It can be written as a sum of positive squares in only one way, i.e., 35557225888144 + 1108324672900 = 5962988^2 + 1052770^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36665550561043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4583193820127 + ... + 4583193820134.

It is an arithmetic number, because the mean of its divisors is an integer number (10694118913639).

Almost surely, 2^{36665550561044} is an apocalyptic number.

It is an amenable number.

36665550561044 is a deficient number, since it is larger than the sum of its proper divisors (27499162920790).

36665550561044 is a wasteful number, since it uses less digits than its factorization.

36665550561044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9166387640265 (or 9166387640263 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 56.

The spelling of 36665550561044 in words is "thirty-six trillion, six hundred sixty-five billion, five hundred fifty million, five hundred sixty-one thousand, forty-four".