7221174412645 has 16 divisors (see below), whose sum is σ = 8875678392000. Its totient is φ = 5638168971648.

The previous prime is 7221174412643. The next prime is 7221174412687. The reversal of 7221174412645 is 5462144711227.

It is a cyclic number.

It is not a de Polignac number, because 7221174412645 - 2¹ = 7221174412643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7221174412595 and 7221174412604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221174412643) 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, 88011360 + ... + 88093369.

It is an arithmetic number, because the mean of its divisors is an integer number (554729899500).

Almost surely, 2^{7221174412645} is an apocalyptic number.

It is an amenable number.

7221174412645 is a deficient number, since it is larger than the sum of its proper divisors (1654503979355).

7221174412645 is a wasteful number, since it uses less digits than its factorization.

7221174412645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176104932.

The product of its digits is 752640, while the sum is 46.

The spelling of 7221174412645 in words is "seven trillion, two hundred twenty-one billion, one hundred seventy-four million, four hundred twelve thousand, six hundred forty-five".