163552508477 has 2 divisors, whose sum is σ = 163552508478. Its totient is φ = 163552508476.

The previous prime is 163552508453. The next prime is 163552508503. The reversal of 163552508477 is 774805255361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142994397316 + 20558111161 = 378146^2 + 143381^2 .

It is a cyclic number.

It is not a de Polignac number, because 163552508477 - 2⁸ = 163552508221 is a prime.

It is a super-3 number, since 3×163552508477³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163552508677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81776254238 + 81776254239.

It is an arithmetic number, because the mean of its divisors is an integer number (81776254239).

Almost surely, 2^163552508477 is an apocalyptic number.

It is an amenable number.

163552508477 is a deficient number, since it is larger than the sum of its proper divisors (1).

163552508477 is an equidigital number, since it uses as much as digits as its factorization.

163552508477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056000, while the sum is 53.

The spelling of 163552508477 in words is "one hundred sixty-three billion, five hundred fifty-two million, five hundred eight thousand, four hundred seventy-seven".