72215255598 has 16 divisors (see below), whose sum is σ = 145484750160. Its totient is φ = 23896045376.

The previous prime is 72215255591. The next prime is 72215255633. The reversal of 72215255598 is 89555251227.

It is a self number, because there is not a number n which added to its sum of digits gives 72215255598.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72215255591) by changing a digit.

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, 43925733 + ... + 43927376.

It is an arithmetic number, because the mean of its divisors is an integer number (9092796885).

Almost surely, 2^72215255598 is an apocalyptic number.

72215255598 is an abundant number, since it is smaller than the sum of its proper divisors (73269494562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72215255598 is a wasteful number, since it uses less digits than its factorization.

72215255598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87853251.

The product of its digits is 2520000, while the sum is 51.

The spelling of 72215255598 in words is "seventy-two billion, two hundred fifteen million, two hundred fifty-five thousand, five hundred ninety-eight".