72200032820 has 24 divisors (see below), whose sum is σ = 152113958304. Its totient is φ = 28785938976.

The previous prime is 72200032789. The next prime is 72200032823. The reversal of 72200032820 is 2823000227.

It is a self number, because there is not a number n which added to its sum of digits gives 72200032820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72200032823) 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, 5873342 + ... + 5885621.

It is an arithmetic number, because the mean of its divisors is an integer number (6338081596).

Almost surely, 2^72200032820 is an apocalyptic number.

It is an amenable number.

72200032820 is an abundant number, since it is smaller than the sum of its proper divisors (79913925484).

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

72200032820 is a wasteful number, since it uses less digits than its factorization.

72200032820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11759279 (or 11759277 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 72200032820 in words is "seventy-two billion, two hundred million, thirty-two thousand, eight hundred twenty".