662164997 has 4 divisors (see below), whose sum is σ = 713100780. Its totient is φ = 611229216.

The previous prime is 662164981. The next prime is 662165027. The reversal of 662164997 is 799461266.

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 120253156 + 541911841 = 10966^2 + 23279^2 .

It is not a de Polignac number, because 662164997 - 2⁴ = 662164981 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 (662164907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25467872 + ... + 25467897.

It is an arithmetic number, because the mean of its divisors is an integer number (178275195).

Almost surely, 2^662164997 is an apocalyptic number.

It is an amenable number.

662164997 is a deficient number, since it is larger than the sum of its proper divisors (50935783).

662164997 is a wasteful number, since it uses less digits than its factorization.

662164997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50935782.

The product of its digits is 979776, while the sum is 50.

The square root of 662164997 is about 25732.5668560290. The cubic root of 662164997 is about 871.6097369351.

The spelling of 662164997 in words is "six hundred sixty-two million, one hundred sixty-four thousand, nine hundred ninety-seven".