720716172011 has 8 divisors (see below), whose sum is σ = 786246434544. Its totient is φ = 655187677920.

The previous prime is 720716171953. The next prime is 720716172017. The reversal of 720716172011 is 110271617027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 720716172011 - 2⁶ = 720716171947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720716172017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496721 + ... + 1299293.

It is an arithmetic number, because the mean of its divisors is an integer number (98280804318).

Almost surely, 2^720716172011 is an apocalyptic number.

720716172011 is a deficient number, since it is larger than the sum of its proper divisors (65530262533).

720716172011 is a wasteful number, since it uses less digits than its factorization.

720716172011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884221.

The product of its (nonzero) digits is 8232, while the sum is 35.

Adding to 720716172011 its reverse (110271617027), we get a palindrome (830987789038).

The spelling of 720716172011 in words is "seven hundred twenty billion, seven hundred sixteen million, one hundred seventy-two thousand, eleven".