163489362551 has 2 divisors, whose sum is σ = 163489362552. Its totient is φ = 163489362550.

The previous prime is 163489362461. The next prime is 163489362587. The reversal of 163489362551 is 155263984361.

163489362551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163489362551 - 2¹⁰ = 163489361527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163489362493 and 163489362502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163489362451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81744681275 + 81744681276.

It is an arithmetic number, because the mean of its divisors is an integer number (81744681276).

Almost surely, 2^163489362551 is an apocalyptic number.

163489362551 is a deficient number, since it is larger than the sum of its proper divisors (1).

163489362551 is an equidigital number, since it uses as much as digits as its factorization.

163489362551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 53.

The spelling of 163489362551 in words is "one hundred sixty-three billion, four hundred eighty-nine million, three hundred sixty-two thousand, five hundred fifty-one".