72366076617 has 4 divisors (see below), whose sum is σ = 96488102160. Its totient is φ = 48244051076.

The previous prime is 72366076613. The next prime is 72366076631. The reversal of 72366076617 is 71667066327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72366076617 - 2² = 72366076613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72366076617.

It is not an unprimeable number, because it can be changed into a prime (72366076613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12061012767 + ... + 12061012772.

It is an arithmetic number, because the mean of its divisors is an integer number (24122025540).

Almost surely, 2^72366076617 is an apocalyptic number.

It is an amenable number.

72366076617 is a deficient number, since it is larger than the sum of its proper divisors (24122025543).

72366076617 is a wasteful number, since it uses less digits than its factorization.

72366076617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24122025542.

The product of its (nonzero) digits is 2667168, while the sum is 51.

The spelling of 72366076617 in words is "seventy-two billion, three hundred sixty-six million, seventy-six thousand, six hundred seventeen".