720747606001 has 4 divisors (see below), whose sum is σ = 723552071652. Its totient is φ = 717943140352.

The previous prime is 720747605993. The next prime is 720747606037. The reversal of 720747606001 is 100606747027.

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

It can be written as a sum of positive squares in 2 ways, for example, as 708208085601 + 12539520400 = 841551^2 + 111980^2 .

It is a cyclic number.

It is not a de Polignac number, because 720747606001 - 2³ = 720747605993 is a prime.

It is a super-2 number, since 2×720747606001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720747606041) 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, 1402232440 + ... + 1402232953.

It is an arithmetic number, because the mean of its divisors is an integer number (180888017913).

Almost surely, 2^720747606001 is an apocalyptic number.

It is an amenable number.

720747606001 is a deficient number, since it is larger than the sum of its proper divisors (2804465651).

720747606001 is a wasteful number, since it uses less digits than its factorization.

720747606001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804465650.

The product of its (nonzero) digits is 98784, while the sum is 40.

The spelling of 720747606001 in words is "seven hundred twenty billion, seven hundred forty-seven million, six hundred six thousand, one".