66574751053 has 2 divisors, whose sum is σ = 66574751054. Its totient is φ = 66574751052.

The previous prime is 66574751029. The next prime is 66574751063. The reversal of 66574751053 is 35015747566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33655003209 + 32919747844 = 183453^2 + 181438^2 .

It is a cyclic number.

It is not a de Polignac number, because 66574751053 - 2²⁵ = 66541196621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66574750988 and 66574751006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66574751063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33287375526 + 33287375527.

It is an arithmetic number, because the mean of its divisors is an integer number (33287375527).

Almost surely, 2^66574751053 is an apocalyptic number.

It is an amenable number.

66574751053 is a deficient number, since it is larger than the sum of its proper divisors (1).

66574751053 is an equidigital number, since it uses as much as digits as its factorization.

66574751053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The spelling of 66574751053 in words is "sixty-six billion, five hundred seventy-four million, seven hundred fifty-one thousand, fifty-three".