1066515160541 has 2 divisors, whose sum is σ = 1066515160542. Its totient is φ = 1066515160540.

The previous prime is 1066515160483. The next prime is 1066515160561. The reversal of 1066515160541 is 1450615156601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967132598041 + 99382562500 = 983429^2 + 315250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066515160541 - 2²⁶ = 1066448051677 is a prime.

It is a super-2 number, since 2×1066515160541² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066515160561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533257580270 + 533257580271.

It is an arithmetic number, because the mean of its divisors is an integer number (533257580271).

Almost surely, 2^{1066515160541} is an apocalyptic number.

It is an amenable number.

1066515160541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066515160541 is an equidigital number, since it uses as much as digits as its factorization.

1066515160541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 1066515160541 in words is "one trillion, sixty-six billion, five hundred fifteen million, one hundred sixty thousand, five hundred forty-one".