72323541545167 has 4 divisors (see below), whose sum is σ = 78898408958376. Its totient is φ = 65748674131960.

The previous prime is 72323541545159. The next prime is 72323541545183. The reversal of 72323541545167 is 76154514532327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72323541545167 - 2³ = 72323541545159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72323541545117) 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 3 ways as a sum of consecutive naturals, for example, 3287433706588 + ... + 3287433706609.

It is an arithmetic number, because the mean of its divisors is an integer number (19724602239594).

Almost surely, 2^{72323541545167} is an apocalyptic number.

72323541545167 is a deficient number, since it is larger than the sum of its proper divisors (6574867413209).

72323541545167 is a wasteful number, since it uses less digits than its factorization.

72323541545167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6574867413208.

The product of its digits is 21168000, while the sum is 55.

The spelling of 72323541545167 in words is "seventy-two trillion, three hundred twenty-three billion, five hundred forty-one million, five hundred forty-five thousand, one hundred sixty-seven".