66570652711 has 2 divisors, whose sum is σ = 66570652712. Its totient is φ = 66570652710.

The previous prime is 66570652667. The next prime is 66570652723. The reversal of 66570652711 is 11725607566.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66570652711 - 2¹³ = 66570644519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66570650711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33285326355 + 33285326356.

It is an arithmetic number, because the mean of its divisors is an integer number (33285326356).

Almost surely, 2^66570652711 is an apocalyptic number.

66570652711 is a deficient number, since it is larger than the sum of its proper divisors (1).

66570652711 is an equidigital number, since it uses as much as digits as its factorization.

66570652711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 66570652711 in words is "sixty-six billion, five hundred seventy million, six hundred fifty-two thousand, seven hundred eleven".