72201560266544 has 40 divisors (see below), whose sum is σ = 140184284752080. Its totient is φ = 36024995635200.

The previous prime is 72201560266523. The next prime is 72201560266601. The reversal of 72201560266544 is 44566206510227.

It is a junction number, because it is equal to n+sod(n) for n = 72201560266492 and 72201560266501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45645539 + ... + 47200829.

It is an arithmetic number, because the mean of its divisors is an integer number (3504607118802).

Almost surely, 2^{72201560266544} is an apocalyptic number.

It is an amenable number.

72201560266544 is a deficient number, since it is larger than the sum of its proper divisors (67982724485536).

72201560266544 is a wasteful number, since it uses less digits than its factorization.

72201560266544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561389 (or 1561383 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 72201560266544 in words is "seventy-two trillion, two hundred one billion, five hundred sixty million, two hundred sixty-six thousand, five hundred forty-four".