72145202336 has 12 divisors (see below), whose sum is σ = 142035867162. Its totient is φ = 36072601152.

The previous prime is 72145202333. The next prime is 72145202357. The reversal of 72145202336 is 63320254127.

It can be written as a sum of positive squares in only one way, i.e., 38163966736 + 33981235600 = 195356^2 + 184340^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72145202296 and 72145202305.

It is not an unprimeable number, because it can be changed into a prime (72145202333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127268755 + ... + 1127268818.

Almost surely, 2^72145202336 is an apocalyptic number.

It is an amenable number.

72145202336 is a deficient number, since it is larger than the sum of its proper divisors (69890664826).

72145202336 is a wasteful number, since it uses less digits than its factorization.

72145202336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254537583 (or 2254537575 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 72145202336 in words is "seventy-two billion, one hundred forty-five million, two hundred two thousand, three hundred thirty-six".