662444145 has 36 divisors (see below), whose sum is σ = 1262121588. Its totient is φ = 321182400.

The previous prime is 662444143. The next prime is 662444147. The reversal of 662444145 is 541444266.

662444145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (662444143) and next prime (662444147).

It can be written as a sum of positive squares in 2 ways, for example, as 331822656 + 330621489 = 18216^2 + 18183^2 .

It is not a de Polignac number, because 662444145 - 2¹ = 662444143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (662444141) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55386 + ... + 66275.

It is an arithmetic number, because the mean of its divisors is an integer number (35058933).

Almost surely, 2^662444145 is an apocalyptic number.

It is an amenable number.

662444145 is a deficient number, since it is larger than the sum of its proper divisors (599677443).

662444145 is a wasteful number, since it uses less digits than its factorization.

662444145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121694 (or 121680 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 662444145 is about 25737.9903061603. The cubic root of 662444145 is about 871.7322008394.

The spelling of 662444145 in words is "six hundred sixty-two million, four hundred forty-four thousand, one hundred forty-five".