163552508677 has 2 divisors, whose sum is σ = 163552508678. Its totient is φ = 163552508676.

The previous prime is 163552508671. The next prime is 163552508737. The reversal of 163552508677 is 776805255361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144517063716 + 19035444961 = 380154^2 + 137969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163552508677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163552508671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81776254338 + 81776254339.

It is an arithmetic number, because the mean of its divisors is an integer number (81776254339).

Almost surely, 2^163552508677 is an apocalyptic number.

It is an amenable number.

163552508677 is a deficient number, since it is larger than the sum of its proper divisors (1).

163552508677 is an equidigital number, since it uses as much as digits as its factorization.

163552508677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 163552508677 in words is "one hundred sixty-three billion, five hundred fifty-two million, five hundred eight thousand, six hundred seventy-seven".