1165010665066 has 16 divisors (see below), whose sum is σ = 1808163773640. Its totient is φ = 562298042880.

The previous prime is 1165010665031. The next prime is 1165010665081. The reversal of 1165010665066 is 6605660105611.

It can be written as a sum of positive squares in 4 ways, for example, as 1069613076841 + 95397588225 = 1034221^2 + 308865^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886475 + ... + 2426686.

Almost surely, 2^{1165010665066} is an apocalyptic number.

1165010665066 is a deficient number, since it is larger than the sum of its proper divisors (643153108574).

1165010665066 is a wasteful number, since it uses less digits than its factorization.

1165010665066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317849.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1165010665066 in words is "one trillion, one hundred sixty-five billion, ten million, six hundred sixty-five thousand, sixty-six".