163964554 has 16 divisors (see below), whose sum is σ = 265144320. Its totient is φ = 75596400.

The previous prime is 163964531. The next prime is 163964569. The reversal of 163964554 is 455469361.

163964554 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163964554.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27187 + ... + 32665.

It is an arithmetic number, because the mean of its divisors is an integer number (16571520).

Almost surely, 2^163964554 is an apocalyptic number.

163964554 is a deficient number, since it is larger than the sum of its proper divisors (101179766).

163964554 is a wasteful number, since it uses less digits than its factorization.

163964554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645.

The product of its digits is 388800, while the sum is 43.

The square root of 163964554 is about 12804.8644662878. The cubic root of 163964554 is about 547.3309294960.

The spelling of 163964554 in words is "one hundred sixty-three million, nine hundred sixty-four thousand, five hundred fifty-four".