72240620337 has 16 divisors (see below), whose sum is σ = 107035202560. Its totient is φ = 48154986000.

The previous prime is 72240620329. The next prime is 72240620339. The reversal of 72240620337 is 73302604227.

72240620337 is a `hidden beast` number, since 7 + 2 + 24 + 0 + 620 + 3 + 3 + 7 = 666.

It is not a de Polignac number, because 72240620337 - 2³ = 72240620329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72240620339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100887 + ... + 393267.

It is an arithmetic number, because the mean of its divisors is an integer number (6689700160).

Almost surely, 2^72240620337 is an apocalyptic number.

It is an amenable number.

72240620337 is a deficient number, since it is larger than the sum of its proper divisors (34794582223).

72240620337 is a wasteful number, since it uses less digits than its factorization.

72240620337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301541 (or 301535 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The spelling of 72240620337 in words is "seventy-two billion, two hundred forty million, six hundred twenty thousand, three hundred thirty-seven".