163780264 has 8 divisors (see below), whose sum is σ = 307088010. Its totient is φ = 81890128.

The previous prime is 163780259. The next prime is 163780271. The reversal of 163780264 is 462087361.

163780264 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 159820164 + 3960100 = 12642^2 + 1990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10236259 + ... + 10236274.

Almost surely, 2^163780264 is an apocalyptic number.

It is an amenable number.

163780264 is a deficient number, since it is larger than the sum of its proper divisors (143307746).

163780264 is a wasteful number, since it uses less digits than its factorization.

163780264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20472539 (or 20472535 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 163780264 is about 12797.6663497686. Note that the first 3 decimals coincide. The cubic root of 163780264 is about 547.1257928194.

The spelling of 163780264 in words is "one hundred sixty-three million, seven hundred eighty thousand, two hundred sixty-four".