36661353713172 has 72 divisors (see below), whose sum is σ = 93088699022592. Its totient is φ = 12165519600000.

The previous prime is 36661353713119. The next prime is 36661353713227. The reversal of 36661353713172 is 27131735316663.

36661353713172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16589448 + ... + 18669024.

It is an arithmetic number, because the mean of its divisors is an integer number (1292898597536).

Almost surely, 2^{36661353713172} is an apocalyptic number.

It is an amenable number.

36661353713172 is an abundant number, since it is smaller than the sum of its proper divisors (56427345309420).

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

36661353713172 is a wasteful number, since it uses less digits than its factorization.

36661353713172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081789 (or 2081784 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 54.

The spelling of 36661353713172 in words is "thirty-six trillion, six hundred sixty-one billion, three hundred fifty-three million, seven hundred thirteen thousand, one hundred seventy-two".