342669556706557 has 2 divisors, whose sum is σ = 342669556706558. Its totient is φ = 342669556706556.

The previous prime is 342669556706467. The next prime is 342669556706569. The reversal of 342669556706557 is 755607655966243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342633945619876 + 35611086681 = 18510374^2 + 188709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342669556706557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342669556706957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171334778353278 + 171334778353279.

It is an arithmetic number, because the mean of its divisors is an integer number (171334778353279).

Almost surely, 2^{342669556706557} is an apocalyptic number.

It is an amenable number.

342669556706557 is a deficient number, since it is larger than the sum of its proper divisors (1).

342669556706557 is an equidigital number, since it uses as much as digits as its factorization.

342669556706557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040000, while the sum is 76.

The spelling of 342669556706557 in words is "three hundred forty-two trillion, six hundred sixty-nine billion, five hundred fifty-six million, seven hundred six thousand, five hundred fifty-seven".