72005030620 has 24 divisors (see below), whose sum is σ = 151768548288. Its totient is φ = 28695729600.

The previous prime is 72005030609. The next prime is 72005030621. The reversal of 72005030620 is 2603050027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72005030621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6637111 + ... + 6647950.

It is an arithmetic number, because the mean of its divisors is an integer number (6323689512).

Almost surely, 2^72005030620 is an apocalyptic number.

It is an amenable number.

72005030620 is an abundant number, since it is smaller than the sum of its proper divisors (79763517668).

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

72005030620 is a wasteful number, since it uses less digits than its factorization.

72005030620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13285341 (or 13285339 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

Adding to 72005030620 its reverse (2603050027), we get a palindrome (74608080647).

The spelling of 72005030620 in words is "seventy-two billion, five million, thirty thousand, six hundred twenty".