72466066391 has 2 divisors, whose sum is σ = 72466066392. Its totient is φ = 72466066390.

The previous prime is 72466066369. The next prime is 72466066459. The reversal of 72466066391 is 19366066427.

It is a weak prime.

It is an emirp because it is prime and its reverse (19366066427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72466066391 - 2⁶ = 72466066327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72466066301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36233033195 + 36233033196.

It is an arithmetic number, because the mean of its divisors is an integer number (36233033196).

Almost surely, 2^72466066391 is an apocalyptic number.

72466066391 is a deficient number, since it is larger than the sum of its proper divisors (1).

72466066391 is an equidigital number, since it uses as much as digits as its factorization.

72466066391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 72466066391 in words is "seventy-two billion, four hundred sixty-six million, sixty-six thousand, three hundred ninety-one".