66201024653 has 2 divisors, whose sum is σ = 66201024654. Its totient is φ = 66201024652.

The previous prime is 66201024611. The next prime is 66201024667. The reversal of 66201024653 is 35642010266.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58681186564 + 7519838089 = 242242^2 + 86717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66201024653 is a prime.

It is a super-2 number, since 2×66201024653² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66201024353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33100512326 + 33100512327.

It is an arithmetic number, because the mean of its divisors is an integer number (33100512327).

Almost surely, 2^66201024653 is an apocalyptic number.

It is an amenable number.

66201024653 is a deficient number, since it is larger than the sum of its proper divisors (1).

66201024653 is an equidigital number, since it uses as much as digits as its factorization.

66201024653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 66201024653 in words is "sixty-six billion, two hundred one million, twenty-four thousand, six hundred fifty-three".