66270071753 has 2 divisors, whose sum is σ = 66270071754. Its totient is φ = 66270071752.

The previous prime is 66270071731. The next prime is 66270071773. The reversal of 66270071753 is 35717007266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40293335824 + 25976735929 = 200732^2 + 161173^2 .

It is a cyclic number.

It is not a de Polignac number, because 66270071753 - 2²⁴ = 66253294537 is a prime.

It is not a weakly prime, because it can be changed into another prime (66270071773) 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 as a sum of consecutive naturals, namely, 33135035876 + 33135035877.

It is an arithmetic number, because the mean of its divisors is an integer number (33135035877).

Almost surely, 2^66270071753 is an apocalyptic number.

It is an amenable number.

66270071753 is a deficient number, since it is larger than the sum of its proper divisors (1).

66270071753 is an equidigital number, since it uses as much as digits as its factorization.

66270071753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 66270071753 in words is "sixty-six billion, two hundred seventy million, seventy-one thousand, seven hundred fifty-three".