162661171 has 8 divisors (see below), whose sum is σ = 165662640. Its totient is φ = 159667968.

The previous prime is 162661157. The next prime is 162661181. The reversal of 162661171 is 171166261.

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 162661171 - 2⁷ = 162661043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162661141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48955 + ... + 52171.

It is an arithmetic number, because the mean of its divisors is an integer number (20707830).

Almost surely, 2^162661171 is an apocalyptic number.

162661171 is a deficient number, since it is larger than the sum of its proper divisors (3001469).

162661171 is an equidigital number, since it uses as much as digits as its factorization.

162661171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133.

The product of its digits is 3024, while the sum is 31.

The square root of 162661171 is about 12753.8688639957. The cubic root of 162661171 is about 545.8767930796.

The spelling of 162661171 in words is "one hundred sixty-two million, six hundred sixty-one thousand, one hundred seventy-one".