66570455153 has 2 divisors, whose sum is σ = 66570455154. Its totient is φ = 66570455152.

The previous prime is 66570455143. The next prime is 66570455183. The reversal of 66570455153 is 35155407566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35350392289 + 31220062864 = 188017^2 + 176692^2 .

It is a cyclic number.

It is not a de Polignac number, because 66570455153 - 2⁴ = 66570455137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66570455098 and 66570455107.

It is not a weakly prime, because it can be changed into another prime (66570455113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33285227576 + 33285227577.

It is an arithmetic number, because the mean of its divisors is an integer number (33285227577).

Almost surely, 2^66570455153 is an apocalyptic number.

It is an amenable number.

66570455153 is a deficient number, since it is larger than the sum of its proper divisors (1).

66570455153 is an equidigital number, since it uses as much as digits as its factorization.

66570455153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890000, while the sum is 47.

The spelling of 66570455153 in words is "sixty-six billion, five hundred seventy million, four hundred fifty-five thousand, one hundred fifty-three".