163073385 has 32 divisors (see below), whose sum is σ = 292152960. Its totient is φ = 86299200.

The previous prime is 163073369. The next prime is 163073387. The reversal of 163073385 is 583370361.

163073385 is a `hidden beast` number, since 16 + 307 + 338 + 5 = 666.

163073385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163073385 - 2⁴ = 163073369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163073387) 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, 13075 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (9129780).

Almost surely, 2^163073385 is an apocalyptic number.

163073385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163073385 is a deficient number, since it is larger than the sum of its proper divisors (129079575).

163073385 is a wasteful number, since it uses less digits than its factorization.

163073385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9366 (or 9360 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 163073385 is about 12770.0189898058. The cubic root of 163073385 is about 546.3375222603.

The spelling of 163073385 in words is "one hundred sixty-three million, seventy-three thousand, three hundred eighty-five".