722066555 has 16 divisors (see below), whose sum is σ = 991024320. Its totient is φ = 494750592.

The previous prime is 722066537. The next prime is 722066567. The reversal of 722066555 is 555660227.

It is not a de Polignac number, because 722066555 - 2⁶ = 722066491 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42797 + ... + 57233.

It is an arithmetic number, because the mean of its divisors is an integer number (61939020).

Almost surely, 2^722066555 is an apocalyptic number.

722066555 is a deficient number, since it is larger than the sum of its proper divisors (268957765).

722066555 is a wasteful number, since it uses less digits than its factorization.

722066555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15878.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 722066555 is about 26871.2961168605. The cubic root of 722066555 is about 897.1376366324.

The spelling of 722066555 in words is "seven hundred twenty-two million, sixty-six thousand, five hundred fifty-five".