72323541545166 has 16 divisors (see below), whose sum is σ = 160718981211600. Its totient is φ = 24107847181704.

The previous prime is 72323541545159. The next prime is 72323541545183. The reversal of 72323541545166 is 66154514532327.

72323541545166 is a `hidden beast` number, since 7 + 2 + 3 + 2 + 35 + 4 + 1 + 545 + 1 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1339324843429 = 72323541545166 / (7 + 2 + 3 + 2 + 3 + 5 + 4 + 1 + 5 + 4 + 5 + 1 + 6 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669662421661 + ... + 669662421768.

It is an arithmetic number, because the mean of its divisors is an integer number (10044936325725).

Almost surely, 2^{72323541545166} is an apocalyptic number.

72323541545166 is an abundant number, since it is smaller than the sum of its proper divisors (88395439666434).

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

72323541545166 is a wasteful number, since it uses less digits than its factorization.

72323541545166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339324843440 (or 1339324843434 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The spelling of 72323541545166 in words is "seventy-two trillion, three hundred twenty-three billion, five hundred forty-one million, five hundred forty-five thousand, one hundred sixty-six".