720666348743 has 32 divisors (see below), whose sum is σ = 817195392000. Its totient is φ = 629820459520.

The previous prime is 720666348679. The next prime is 720666348767. The reversal of 720666348743 is 347843666027.

It is a cyclic number.

It is not a de Polignac number, because 720666348743 - 2⁶ = 720666348679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720666348043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39309203 + ... + 39327531.

It is an arithmetic number, because the mean of its divisors is an integer number (25537356000).

Almost surely, 2^720666348743 is an apocalyptic number.

720666348743 is a deficient number, since it is larger than the sum of its proper divisors (96529043257).

720666348743 is a wasteful number, since it uses less digits than its factorization.

720666348743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19735.

The product of its (nonzero) digits is 24385536, while the sum is 56.

The spelling of 720666348743 in words is "seven hundred twenty billion, six hundred sixty-six million, three hundred forty-eight thousand, seven hundred forty-three".