163079978 has 8 divisors (see below), whose sum is σ = 245698272. Its totient is φ = 81180556.

The previous prime is 163079957. The next prime is 163080011. The reversal of 163079978 is 879970361.

163079978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179150 + ... + 180057.

It is an arithmetic number, because the mean of its divisors is an integer number (30712284).

Almost surely, 2^163079978 is an apocalyptic number.

163079978 is a deficient number, since it is larger than the sum of its proper divisors (82618294).

163079978 is a wasteful number, since it uses less digits than its factorization.

163079978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359436.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 163079978 is about 12770.2771309005. The cubic root of 163079978 is about 546.3448849062.

The spelling of 163079978 in words is "one hundred sixty-three million, seventy-nine thousand, nine hundred seventy-eight".