7155576552913 has 2 divisors, whose sum is σ = 7155576552914. Its totient is φ = 7155576552912.

The previous prime is 7155576552791. The next prime is 7155576552947. The reversal of 7155576552913 is 3192556755517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5711368683409 + 1444207869504 = 2389847^2 + 1201752^2 .

It is an emirp because it is prime and its reverse (3192556755517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7155576552913 - 2⁹ = 7155576552401 is a prime.

It is not a weakly prime, because it can be changed into another prime (7155576555913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3577788276456 + 3577788276457.

It is an arithmetic number, because the mean of its divisors is an integer number (3577788276457).

Almost surely, 2^{7155576552913} is an apocalyptic number.

It is an amenable number.

7155576552913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7155576552913 is an equidigital number, since it uses as much as digits as its factorization.

7155576552913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49612500, while the sum is 61.

The spelling of 7155576552913 in words is "seven trillion, one hundred fifty-five billion, five hundred seventy-six million, five hundred fifty-two thousand, nine hundred thirteen".