162206661 has 4 divisors (see below), whose sum is σ = 216275552. Its totient is φ = 108137772.

The previous prime is 162206623. The next prime is 162206713. The reversal of 162206661 is 166602261.

162206661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 162206661 - 2⁷ = 162206533 is a prime.

It is a super-2 number, since 2×162206661² = 52622001745537842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162206761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27034441 + ... + 27034446.

It is an arithmetic number, because the mean of its divisors is an integer number (54068888).

Almost surely, 2^162206661 is an apocalyptic number.

It is an amenable number.

162206661 is a deficient number, since it is larger than the sum of its proper divisors (54068891).

162206661 is an equidigital number, since it uses as much as digits as its factorization.

162206661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54068890.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 162206661 is about 12736.0378846798. The cubic root of 162206661 is about 545.3678867304.

The spelling of 162206661 in words is "one hundred sixty-two million, two hundred six thousand, six hundred sixty-one".