167430661 has 8 divisors (see below), whose sum is σ = 172118264. Its totient is φ = 162751680.

The previous prime is 167430647. The next prime is 167430667. The reversal of 167430661 is 166034761.

167430661 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 84529636 + 82901025 = 9194^2 + 9105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 167430661 - 2⁷ = 167430533 is a prime.

It is the 12940-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167430667) by changing a digit.

It is a nontrivial repunit in base 12939.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70351 + ... + 72691.

It is an arithmetic number, because the mean of its divisors is an integer number (21514783).

Almost surely, 2^167430661 is an apocalyptic number.

It is an amenable number.

167430661 is a deficient number, since it is larger than the sum of its proper divisors (4687603).

167430661 is a wasteful number, since it uses less digits than its factorization.

167430661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 167430661 is about 12939.5000289810. The cubic root of 167430661 is about 551.1608111182.

The spelling of 167430661 in words is "one hundred sixty-seven million, four hundred thirty thousand, six hundred sixty-one".