7206568745545 has 32 divisors (see below), whose sum is σ = 9326246055840. Its totient is φ = 5314268252160.

The previous prime is 7206568745489. The next prime is 7206568745581. The reversal of 7206568745545 is 5455478656027.

It can be written as a sum of positive squares in 16 ways, for example, as 5833978421769 + 1372590323776 = 2415363^2 + 1171576^2 .

It is not a de Polignac number, because 7206568745545 - 2¹⁷ = 7206568614473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190143037 + ... + 190180933.

It is an arithmetic number, because the mean of its divisors is an integer number (291445189245).

Almost surely, 2^{7206568745545} is an apocalyptic number.

It is an amenable number.

7206568745545 is a deficient number, since it is larger than the sum of its proper divisors (2119677310295).

7206568745545 is a wasteful number, since it uses less digits than its factorization.

7206568745545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41965.

The product of its (nonzero) digits is 282240000, while the sum is 64.

The spelling of 7206568745545 in words is "seven trillion, two hundred six billion, five hundred sixty-eight million, seven hundred forty-five thousand, five hundred forty-five".