66570653411 has 2 divisors, whose sum is σ = 66570653412. Its totient is φ = 66570653410.

The previous prime is 66570653399. The next prime is 66570653491. The reversal of 66570653411 is 11435607566.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66570653411 is a prime.

It is not a weakly prime, because it can be changed into another prime (66570653491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33285326705 + 33285326706.

It is an arithmetic number, because the mean of its divisors is an integer number (33285326706).

Almost surely, 2^66570653411 is an apocalyptic number.

66570653411 is a deficient number, since it is larger than the sum of its proper divisors (1).

66570653411 is an equidigital number, since it uses as much as digits as its factorization.

66570653411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 66570653411 in words is "sixty-six billion, five hundred seventy million, six hundred fifty-three thousand, four hundred eleven".