163453510634 has 4 divisors (see below), whose sum is σ = 245180265954. Its totient is φ = 81726755316.

The previous prime is 163453510609. The next prime is 163453510663. The reversal of 163453510634 is 436015354361.

163453510634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84718834225 + 78734676409 = 291065^2 + 280597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163453510591 and 163453510600.

It is an unprimeable number.

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, 40863377657 + ... + 40863377660.

Almost surely, 2^163453510634 is an apocalyptic number.

163453510634 is a deficient number, since it is larger than the sum of its proper divisors (81726755320).

163453510634 is an equidigital number, since it uses as much as digits as its factorization.

163453510634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81726755319.

The product of its (nonzero) digits is 388800, while the sum is 41.

Adding to 163453510634 its reverse (436015354361), we get a palindrome (599468864995).

The spelling of 163453510634 in words is "one hundred sixty-three billion, four hundred fifty-three million, five hundred ten thousand, six hundred thirty-four".