72245156800 has 42 divisors (see below), whose sum is σ = 177768242888. Its totient is φ = 28898062080.

The previous prime is 72245156777. The next prime is 72245156801. The reversal of 72245156800 is 865154227.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72245156801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22575012 + ... + 22578211.

Almost surely, 2^72245156800 is an apocalyptic number.

It is an amenable number.

72245156800 is an abundant number, since it is smaller than the sum of its proper divisors (105523086088).

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

72245156800 is a wasteful number, since it uses less digits than its factorization.

72245156800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45153245 (or 45153230 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 72245156800 in words is "seventy-two billion, two hundred forty-five million, one hundred fifty-six thousand, eight hundred".