662064345 has 24 divisors (see below), whose sum is σ = 1187152200. Its totient is φ = 340924416.

The previous prime is 662064343. The next prime is 662064373. The reversal of 662064345 is 543460266.

662064345 is a `hidden beast` number, since 6 + 6 + 2 + 0 + 643 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 751689 + 661312656 = 867^2 + 25716^2 .

It is not a de Polignac number, because 662064345 - 2¹ = 662064343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (662064343) 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 23 ways as a sum of consecutive naturals, for example, 252360 + ... + 254969.

It is an arithmetic number, because the mean of its divisors is an integer number (49464675).

Almost surely, 2^662064345 is an apocalyptic number.

It is an amenable number.

662064345 is a deficient number, since it is larger than the sum of its proper divisors (525087855).

662064345 is a wasteful number, since it uses less digits than its factorization.

662064345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507369 (or 507366 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 662064345 is about 25730.6110498760. The cubic root of 662064345 is about 871.5655718558.

The spelling of 662064345 in words is "six hundred sixty-two million, sixty-four thousand, three hundred forty-five".