162668057 has 4 divisors (see below), whose sum is σ = 162869940. Its totient is φ = 162466176.

The previous prime is 162668039. The next prime is 162668083. The reversal of 162668057 is 750866261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 113443801 + 49224256 = 10651^2 + 7016^2 .

It is a cyclic number.

It is not a de Polignac number, because 162668057 - 2⁶ = 162667993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162662057) 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, 99728 + ... + 101345.

It is an arithmetic number, because the mean of its divisors is an integer number (40717485).

Almost surely, 2^162668057 is an apocalyptic number.

It is an amenable number.

162668057 is a deficient number, since it is larger than the sum of its proper divisors (201883).

162668057 is an equidigital number, since it uses as much as digits as its factorization.

162668057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201882.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 162668057 is about 12754.1388184385. The cubic root of 162668057 is about 545.8844959106.

The spelling of 162668057 in words is "one hundred sixty-two million, six hundred sixty-eight thousand, fifty-seven".