1066710515161 has 4 divisors (see below), whose sum is σ = 1066712747472. Its totient is φ = 1066708282852.

The previous prime is 1066710515099. The next prime is 1066710515183. The reversal of 1066710515161 is 1615150176601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1066710515161 - 2⁷ = 1066710515033 is a prime.

It is a super-2 number, since 2×1066710515161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066710515861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76711 + ... + 1462636.

It is an arithmetic number, because the mean of its divisors is an integer number (266678186868).

Almost surely, 2^{1066710515161} is an apocalyptic number.

It is an amenable number.

1066710515161 is a deficient number, since it is larger than the sum of its proper divisors (2232311).

1066710515161 is an equidigital number, since it uses as much as digits as its factorization.

1066710515161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232310.

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 1066710515161 in words is "one trillion, sixty-six billion, seven hundred ten million, five hundred fifteen thousand, one hundred sixty-one".