7072066520109 has 6 divisors (see below), whose sum is σ = 10215207195726. Its totient is φ = 4714711013400.

The previous prime is 7072066520107. The next prime is 7072066520147. The reversal of 7072066520109 is 9010256602707.

It can be written as a sum of positive squares in only one way, i.e., 3553639712100 + 3518426808009 = 1885110^2 + 1875747^2 .

It is not a de Polignac number, because 7072066520109 - 2¹ = 7072066520107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7072066520107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 392892584442 + ... + 392892584459.

It is an arithmetic number, because the mean of its divisors is an integer number (1702534532621).

Almost surely, 2^{7072066520109} is an apocalyptic number.

It is an amenable number.

7072066520109 is a deficient number, since it is larger than the sum of its proper divisors (3143140675617).

7072066520109 is a wasteful number, since it uses less digits than its factorization.

7072066520109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785785168907 (or 785785168904 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 7072066520109 in words is "seven trillion, seventy-two billion, sixty-six million, five hundred twenty thousand, one hundred nine".