662671445 has 4 divisors (see below), whose sum is σ = 795205740. Its totient is φ = 530137152.

The previous prime is 662671439. The next prime is 662671459. The reversal of 662671445 is 544176266.

It is a happy number.

662671445 is digitally balanced in base 6, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 115906756 + 546764689 = 10766^2 + 23383^2 .

It is a cyclic number.

It is not a de Polignac number, because 662671445 - 2⁶ = 662671381 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 66267140 + ... + 66267149.

It is an arithmetic number, because the mean of its divisors is an integer number (198801435).

Almost surely, 2^662671445 is an apocalyptic number.

It is an amenable number.

662671445 is a deficient number, since it is larger than the sum of its proper divisors (132534295).

662671445 is a wasteful number, since it uses less digits than its factorization.

662671445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132534294.

The product of its digits is 241920, while the sum is 41.

The square root of 662671445 is about 25742.4055791218. The cubic root of 662671445 is about 871.8318933052.

The spelling of 662671445 in words is "six hundred sixty-two million, six hundred seventy-one thousand, four hundred forty-five".