167161647 has 4 divisors (see below), whose sum is σ = 222882200. Its totient is φ = 111441096.

The previous prime is 167161627. The next prime is 167161661. The reversal of 167161647 is 746161761.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-167161647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167161607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27860272 + ... + 27860277.

It is an arithmetic number, because the mean of its divisors is an integer number (55720550).

Almost surely, 2^167161647 is an apocalyptic number.

167161647 is a deficient number, since it is larger than the sum of its proper divisors (55720553).

167161647 is an equidigital number, since it uses as much as digits as its factorization.

167161647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55720552.

The product of its digits is 42336, while the sum is 39.

The square root of 167161647 is about 12929.1007807968. The cubic root of 167161647 is about 550.8654660603.

The spelling of 167161647 in words is "one hundred sixty-seven million, one hundred sixty-one thousand, six hundred forty-seven".