66350245 has 24 divisors (see below), whose sum is σ = 86843016. Its totient is φ = 48642048.

The previous prime is 66350203. The next prime is 66350267. The reversal of 66350245 is 54205366.

It can be written as a sum of positive squares in 12 ways, for example, as 54420129 + 11930116 = 7377^2 + 3454^2 .

It is not a de Polignac number, because 66350245 - 2¹¹ = 66348197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196717 + ... + 197053.

It is an arithmetic number, because the mean of its divisors is an integer number (3618459).

Almost surely, 2^66350245 is an apocalyptic number.

66350245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66350245 is a deficient number, since it is larger than the sum of its proper divisors (20492771).

66350245 is a wasteful number, since it uses less digits than its factorization.

66350245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 66350245 is about 8145.5659717419. The cubic root of 66350245 is about 404.8376019121.

The spelling of 66350245 in words is "sixty-six million, three hundred fifty thousand, two hundred forty-five".