162661711 has 4 divisors (see below), whose sum is σ = 164720800. Its totient is φ = 160602624.

The previous prime is 162661703. The next prime is 162661753. The reversal of 162661711 is 117166261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117166261 = 17 ⋅6892133.

It is a cyclic number.

It is not a de Polignac number, because 162661711 - 2³ = 162661703 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 (162661771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1029426 + ... + 1029583.

It is an arithmetic number, because the mean of its divisors is an integer number (41180200).

Almost surely, 2^162661711 is an apocalyptic number.

162661711 is a deficient number, since it is larger than the sum of its proper divisors (2059089).

162661711 is an equidigital number, since it uses as much as digits as its factorization.

162661711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059088.

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

The square root of 162661711 is about 12753.8900340249. The cubic root of 162661711 is about 545.8773971433.

The spelling of 162661711 in words is "one hundred sixty-two million, six hundred sixty-one thousand, seven hundred eleven".