36663172645524 has 96 divisors (see below), whose sum is σ = 89585797948416. Its totient is φ = 11647964908800.

The previous prime is 36663172645523. The next prime is 36663172645597. The reversal of 36663172645524 is 42554627136663.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36663172645523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275905699 + ... + 276038549.

It is an arithmetic number, because the mean of its divisors is an integer number (933185395296).

Almost surely, 2^{36663172645524} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36663172645524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44792898974208).

36663172645524 is an abundant number, since it is smaller than the sum of its proper divisors (52922625302892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36663172645524 is a wasteful number, since it uses less digits than its factorization.

36663172645524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136445 (or 136443 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 60.

The spelling of 36663172645524 in words is "thirty-six trillion, six hundred sixty-three billion, one hundred seventy-two million, six hundred forty-five thousand, five hundred twenty-four".