163641676 has 24 divisors (see below), whose sum is σ = 320853456. Its totient is φ = 72371520.

The previous prime is 163641629. The next prime is 163641679. The reversal of 163641676 is 676146361.

It is not an unprimeable number, because it can be changed into a prime (163641679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48631 + ... + 51886.

It is an arithmetic number, because the mean of its divisors is an integer number (13368894).

Almost surely, 2^163641676 is an apocalyptic number.

It is an amenable number.

163641676 is a deficient number, since it is larger than the sum of its proper divisors (157211780).

163641676 is a wasteful number, since it uses less digits than its factorization.

163641676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100569 (or 100567 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 163641676 is about 12792.2506229357. The cubic root of 163641676 is about 546.9714265059.

The spelling of 163641676 in words is "one hundred sixty-three million, six hundred forty-one thousand, six hundred seventy-six".