720066015 has 12 divisors (see below), whose sum is σ = 1248114504. Its totient is φ = 384035184.

The previous prime is 720066013. The next prime is 720066071. The reversal of 720066015 is 510660027.

It is not a de Polignac number, because 720066015 - 2¹ = 720066013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 720066015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720066013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8000689 + ... + 8000778.

It is an arithmetic number, because the mean of its divisors is an integer number (104009542).

Almost surely, 2^720066015 is an apocalyptic number.

720066015 is a deficient number, since it is larger than the sum of its proper divisors (528048489).

720066015 is a wasteful number, since it uses less digits than its factorization.

720066015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16001478 (or 16001475 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 720066015 is about 26834.0458186983. The cubic root of 720066015 is about 896.3083410608.

The spelling of 720066015 in words is "seven hundred twenty million, sixty-six thousand, fifteen".