720052221855 has 32 divisors (see below), whose sum is σ = 1153475769600. Its totient is φ = 383564086272.

The previous prime is 720052221841. The next prime is 720052221893. The reversal of 720052221855 is 558122250027.

It is not a de Polignac number, because 720052221855 - 2⁴ = 720052221839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46093236 + ... + 46108854.

It is an arithmetic number, because the mean of its divisors is an integer number (36046117800).

Almost surely, 2^720052221855 is an apocalyptic number.

720052221855 is a deficient number, since it is larger than the sum of its proper divisors (433423547745).

720052221855 is a wasteful number, since it uses less digits than its factorization.

720052221855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19143.

The product of its (nonzero) digits is 112000, while the sum is 39.

The spelling of 720052221855 in words is "seven hundred twenty billion, fifty-two million, two hundred twenty-one thousand, eight hundred fifty-five".