6612656425057 has 2 divisors, whose sum is σ = 6612656425058. Its totient is φ = 6612656425056.

The previous prime is 6612656425013. The next prime is 6612656425069. The reversal of 6612656425057 is 7505246562166.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6612463103841 + 193321216 = 2571471^2 + 13904^2 .

It is a cyclic number.

It is not a de Polignac number, because 6612656425057 - 2³¹ = 6610508941409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6612656424989 and 6612656425007.

It is not a weakly prime, because it can be changed into another prime (6612656425097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306328212528 + 3306328212529.

It is an arithmetic number, because the mean of its divisors is an integer number (3306328212529).

Almost surely, 2^{6612656425057} is an apocalyptic number.

It is an amenable number.

6612656425057 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612656425057 is an equidigital number, since it uses as much as digits as its factorization.

6612656425057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 6612656425057 in words is "six trillion, six hundred twelve billion, six hundred fifty-six million, four hundred twenty-five thousand, fifty-seven".