720666348744 has 64 divisors (see below), whose sum is σ = 1840378112640. Its totient is φ = 235109880320.

The previous prime is 720666348679. The next prime is 720666348767. The reversal of 720666348744 is 447843666027.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310079 + ... + 1776974.

It is an arithmetic number, because the mean of its divisors is an integer number (28755908010).

Almost surely, 2^720666348744 is an apocalyptic number.

It is an amenable number.

720666348744 is an abundant number, since it is smaller than the sum of its proper divisors (1119711763896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720666348744 is a wasteful number, since it uses less digits than its factorization.

720666348744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087270 (or 3087266 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 57.

The spelling of 720666348744 in words is "seven hundred twenty billion, six hundred sixty-six million, three hundred forty-eight thousand, seven hundred forty-four".