72055555555 has 8 divisors (see below), whose sum is σ = 86469364800. Its totient is φ = 57642645696.

The previous prime is 72055555511. The next prime is 72055555571. The reversal of 72055555555 is 55555555027.

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 72055555555 - 2³¹ = 69908071907 is a prime.

72055555555 is a modest number, since divided by 555555 gives 72055 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 72055555499 and 72055555508.

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 7 ways as a sum of consecutive naturals, for example, 33835 + ... + 381124.

It is an arithmetic number, because the mean of its divisors is an integer number (10808670600).

Almost surely, 2^72055555555 is an apocalyptic number.

72055555555 is a deficient number, since it is larger than the sum of its proper divisors (14413809245).

72055555555 is a wasteful number, since it uses less digits than its factorization.

72055555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449693.

The product of its (nonzero) digits is 5468750, while the sum is 49.

The spelling of 72055555555 in words is "seventy-two billion, fifty-five million, five hundred fifty-five thousand, five hundred fifty-five".