63556160166077 has 2 divisors, whose sum is σ = 63556160166078. Its totient is φ = 63556160166076.

The previous prime is 63556160166071. The next prime is 63556160166151. The reversal of 63556160166077 is 77066106165536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62077080967801 + 1479079198276 = 7878901^2 + 1216174^2 .

It is a cyclic number.

It is not a de Polignac number, because 63556160166077 - 2¹² = 63556160161981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63556160166071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31778080083038 + 31778080083039.

It is an arithmetic number, because the mean of its divisors is an integer number (31778080083039).

Almost surely, 2^{63556160166077} is an apocalyptic number.

It is an amenable number.

63556160166077 is a deficient number, since it is larger than the sum of its proper divisors (1).

63556160166077 is an equidigital number, since it uses as much as digits as its factorization.

63556160166077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28576800, while the sum is 59.

The spelling of 63556160166077 in words is "sixty-three trillion, five hundred fifty-six billion, one hundred sixty million, one hundred sixty-six thousand, seventy-seven".