720066934751 has 4 divisors (see below), whose sum is σ = 720074347752. Its totient is φ = 720059521752.

The previous prime is 720066934739. The next prime is 720066934777. The reversal of 720066934751 is 157439660027.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720066934751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 720066934751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720066934781) 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, 3558836 + ... + 3755721.

It is an arithmetic number, because the mean of its divisors is an integer number (180018586938).

Almost surely, 2^720066934751 is an apocalyptic number.

720066934751 is a deficient number, since it is larger than the sum of its proper divisors (7413001).

720066934751 is an equidigital number, since it uses as much as digits as its factorization.

720066934751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413000.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 720066934751 in words is "seven hundred twenty billion, sixty-six million, nine hundred thirty-four thousand, seven hundred fifty-one".