163776045 has 32 divisors (see below), whose sum is σ = 280247040. Its totient is φ = 81382400.

The previous prime is 163776037. The next prime is 163776047. The reversal of 163776045 is 540677361.

It is not a de Polignac number, because 163776045 - 2³ = 163776037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163775994 and 163776012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163776047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22576 + ... + 28934.

It is an arithmetic number, because the mean of its divisors is an integer number (8757720).

Almost surely, 2^163776045 is an apocalyptic number.

163776045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163776045 is a deficient number, since it is larger than the sum of its proper divisors (116470995).

163776045 is a wasteful number, since it uses less digits than its factorization.

163776045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 163776045 is about 12797.5015139675. The cubic root of 163776045 is about 547.1210947695.

It can be divided in two parts, 16377 and 6045, that added together give a palindrome (22422).

The spelling of 163776045 in words is "one hundred sixty-three million, seven hundred seventy-six thousand, forty-five".