7218040752056 has 32 divisors (see below), whose sum is σ = 14161862240640. Its totient is φ = 3445224951168.

The previous prime is 7218040752047. The next prime is 7218040752133. The reversal of 7218040752056 is 6502570408127.

It is a super-2 number, since 2×7218040752056² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7218040752056.

It is a congruent number.

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, 230034056 + ... + 230065431.

It is an arithmetic number, because the mean of its divisors is an integer number (442558195020).

Almost surely, 2^{7218040752056} is an apocalyptic number.

It is an amenable number.

7218040752056 is a deficient number, since it is larger than the sum of its proper divisors (6943821488584).

7218040752056 is a wasteful number, since it uses less digits than its factorization.

7218040752056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460099583 (or 460099579 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 7218040752056 in words is "seven trillion, two hundred eighteen billion, forty million, seven hundred fifty-two thousand, fifty-six".