30670867161 has 135 divisors (see below), whose sum is σ = 53026322349. Its totient is φ = 17653204800.

The previous prime is 30670867147. The next prime is 30670867163. The reversal of 30670867161 is 16176807603.

The square root of 30670867161 is 175131.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9202756761 + 21468110400 = 95931^2 + 146520^2 .

It is not a de Polignac number, because 30670867161 - 2²⁷ = 30536649433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30670867163) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 502801071 + ... + 502801131.

Almost surely, 2^30670867161 is an apocalyptic number.

30670867161 is the 175131-st square number.

30670867161 is the 87566-th centered octagonal number.

It is an amenable number.

30670867161 is a deficient number, since it is larger than the sum of its proper divisors (22355455188).

30670867161 is an equidigital number, since it uses as much as digits as its factorization.

30670867161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 30670867161 in words is "thirty billion, six hundred seventy million, eight hundred sixty-seven thousand, one hundred sixty-one".