163268377 has 4 divisors (see below), whose sum is σ = 167065360. Its totient is φ = 159471396.

The previous prime is 163268341. The next prime is 163268393. The reversal of 163268377 is 773862361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773862361 = 29 ⋅26684909.

It is a cyclic number.

It is not a de Polignac number, because 163268377 - 2¹¹ = 163266329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 3796939 = 163268377 / (1 + 6 + 3 + 2 + 6 + 8 + 3 + 7 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163268327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898427 + ... + 1898512.

It is an arithmetic number, because the mean of its divisors is an integer number (41766340).

Almost surely, 2^163268377 is an apocalyptic number.

It is an amenable number.

163268377 is a deficient number, since it is larger than the sum of its proper divisors (3796983).

163268377 is an equidigital number, since it uses as much as digits as its factorization.

163268377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796982.

The product of its digits is 254016, while the sum is 43.

The square root of 163268377 is about 12777.6514665255. The cubic root of 163268377 is about 546.5551932051. Note that the first 3 decimals are identical.

The spelling of 163268377 in words is "one hundred sixty-three million, two hundred sixty-eight thousand, three hundred seventy-seven".