7221665424580 has 48 divisors (see below), whose sum is σ = 15911341608960. Its totient is φ = 2749655779200.

The previous prime is 7221665424577. The next prime is 7221665424583. The reversal of 7221665424580 is 854245661227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7221665424577) and next prime (7221665424583).

It is not an unprimeable number, because it can be changed into a prime (7221665424583) 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, 95436340 + ... + 95511979.

It is an arithmetic number, because the mean of its divisors is an integer number (331486283520).

Almost surely, 2^{7221665424580} is an apocalyptic number.

It is an amenable number.

7221665424580 is an abundant number, since it is smaller than the sum of its proper divisors (8689676184380).

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

7221665424580 is a wasteful number, since it uses less digits than its factorization.

7221665424580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190948420 (or 190948418 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 7221665424580 in words is "seven trillion, two hundred twenty-one billion, six hundred sixty-five million, four hundred twenty-four thousand, five hundred eighty".