72233115040 has 48 divisors (see below), whose sum is σ = 170749411560. Its totient is φ = 28876538880.

The previous prime is 72233114983. The next prime is 72233115049. The reversal of 72233115040 is 4051133227.

It can be written as a sum of positive squares in 4 ways, for example, as 18466635664 + 53766479376 = 135892^2 + 231876^2 .

It is not an unprimeable number, because it can be changed into a prime (72233115049) 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, 148906 + ... + 408214.

Almost surely, 2^72233115040 is an apocalyptic number.

It is an amenable number.

72233115040 is an abundant number, since it is smaller than the sum of its proper divisors (98516296520).

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

72233115040 is a wasteful number, since it uses less digits than its factorization.

72233115040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261065 (or 261057 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 72233115040 its reverse (4051133227), we get a palindrome (76284248267).

The spelling of 72233115040 in words is "seventy-two billion, two hundred thirty-three million, one hundred fifteen thousand, forty".