72333522215020 has 96 divisors (see below), whose sum is σ = 166659034651200. Its totient is φ = 26152442265600.

The previous prime is 72333522214963. The next prime is 72333522215029. The reversal of 72333522215020 is 2051222533327.

It is a super-2 number, since 2×72333522215020² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72333522215029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197682796 + ... + 198048364.

It is an arithmetic number, because the mean of its divisors is an integer number (1736031610950).

Almost surely, 2^{72333522215020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72333522215020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83329517325600).

72333522215020 is an abundant number, since it is smaller than the sum of its proper divisors (94325512436180).

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

72333522215020 is a wasteful number, since it uses less digits than its factorization.

72333522215020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370739 (or 370737 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 37.

Adding to 72333522215020 its reverse (2051222533327), we get a palindrome (74384744748347).

It can be divided in two parts, 7233 and 3522215020, that added together give a palindrome (3522222253).

The spelling of 72333522215020 in words is "seventy-two trillion, three hundred thirty-three billion, five hundred twenty-two million, two hundred fifteen thousand, twenty".