163448770 has 16 divisors (see below), whose sum is σ = 296908920. Its totient is φ = 64779264.

The previous prime is 163448759. The next prime is 163448797. The reversal of 163448770 is 77844361.

163448770 is digitally balanced in base 2, 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 4 ways, for example, as 111450249 + 51998521 = 10557^2 + 7211^2 .

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, 73887 + ... + 76066.

Almost surely, 2^163448770 is an apocalyptic number.

163448770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163448770 is a deficient number, since it is larger than the sum of its proper divisors (133460150).

163448770 is a wasteful number, since it uses less digits than its factorization.

163448770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150069.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 163448770 is about 12784.7084440749. The cubic root of 163448770 is about 546.7564129045.

The spelling of 163448770 in words is "one hundred sixty-three million, four hundred forty-eight thousand, seven hundred seventy".