720560155 has 8 divisors (see below), whose sum is σ = 988196832. Its totient is φ = 494098368.

The previous prime is 720560153. The next prime is 720560201. The reversal of 720560155 is 551065027.

720560155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 720560155 - 2¹ = 720560153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720560153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10293682 + ... + 10293751.

It is an arithmetic number, because the mean of its divisors is an integer number (123524604).

Almost surely, 2^720560155 is an apocalyptic number.

720560155 is a deficient number, since it is larger than the sum of its proper divisors (267636677).

720560155 is a wasteful number, since it uses less digits than its factorization.

720560155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20587445.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 720560155 is about 26843.2515727883. The cubic root of 720560155 is about 896.5133225117.

The spelling of 720560155 in words is "seven hundred twenty million, five hundred sixty thousand, one hundred fifty-five".