163530366621423 has 16 divisors (see below), whose sum is σ = 220668626941056. Its totient is φ = 107706188980640.

The previous prime is 163530366621409. The next prime is 163530366621467. The reversal of 163530366621423 is 324126663035361.

It is a cyclic number.

It is not a de Polignac number, because 163530366621423 - 2⁶ = 163530366621359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163530366623423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49497361 + ... + 52697717.

It is an arithmetic number, because the mean of its divisors is an integer number (13791789183816).

Almost surely, 2^{163530366621423} is an apocalyptic number.

163530366621423 is a deficient number, since it is larger than the sum of its proper divisors (57138260319633).

163530366621423 is a wasteful number, since it uses less digits than its factorization.

163530366621423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405654.

The product of its (nonzero) digits is 8398080, while the sum is 51.

The spelling of 163530366621423 in words is "one hundred sixty-three trillion, five hundred thirty billion, three hundred sixty-six million, six hundred twenty-one thousand, four hundred twenty-three".