1066165100155 has 16 divisors (see below), whose sum is σ = 1288134542880. Its totient is φ = 847115013888.

The previous prime is 1066165100137. The next prime is 1066165100167. The reversal of 1066165100155 is 5510015616601.

It is a cyclic number.

It is not a de Polignac number, because 1066165100155 - 2³¹ = 1064017616507 is a prime.

It is a super-2 number, since 2×1066165100155² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734031 + ... + 1634359.

It is an arithmetic number, because the mean of its divisors is an integer number (80508408930).

Almost surely, 2^{1066165100155} is an apocalyptic number.

1066165100155 is a deficient number, since it is larger than the sum of its proper divisors (221969442725).

1066165100155 is a wasteful number, since it uses less digits than its factorization.

1066165100155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901950.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 1066165100155 in words is "one trillion, sixty-six billion, one hundred sixty-five million, one hundred thousand, one hundred fifty-five".