66751353 has 12 divisors (see below), whose sum is σ = 96520788. Its totient is φ = 44453760.

The previous prime is 66751343. The next prime is 66751357. The reversal of 66751353 is 35315766.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36578304 + 30173049 = 6048^2 + 5493^2 .

It is not a de Polignac number, because 66751353 - 2⁴ = 66751337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66751357) 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 11 ways as a sum of consecutive naturals, for example, 6493 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (8043399).

Almost surely, 2^66751353 is an apocalyptic number.

It is an amenable number.

66751353 is a deficient number, since it is larger than the sum of its proper divisors (29769435).

66751353 is a wasteful number, since it uses less digits than its factorization.

66751353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864 (or 7861 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 66751353 is about 8170.1501210198. The cubic root of 66751353 is about 405.6517535177.

The spelling of 66751353 in words is "sixty-six million, seven hundred fifty-one thousand, three hundred fifty-three".