63534216664157 has 2 divisors, whose sum is σ = 63534216664158. Its totient is φ = 63534216664156.

The previous prime is 63534216664153. The next prime is 63534216664229. The reversal of 63534216664157 is 75146661243536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51578983786201 + 11955232877956 = 7181851^2 + 3457634^2 .

It is a cyclic number.

It is not a de Polignac number, because 63534216664157 - 2² = 63534216664153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63534216664096 and 63534216664105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63534216664153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31767108332078 + 31767108332079.

It is an arithmetic number, because the mean of its divisors is an integer number (31767108332079).

Almost surely, 2^{63534216664157} is an apocalyptic number.

It is an amenable number.

63534216664157 is a deficient number, since it is larger than the sum of its proper divisors (1).

63534216664157 is an equidigital number, since it uses as much as digits as its factorization.

63534216664157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 59.

The spelling of 63534216664157 in words is "sixty-three trillion, five hundred thirty-four billion, two hundred sixteen million, six hundred sixty-four thousand, one hundred fifty-seven".