6661066151205 has 24 divisors (see below), whose sum is σ = 11547668740608. Its totient is φ = 3552008384736.

The previous prime is 6661066151191. The next prime is 6661066151213. The reversal of 6661066151205 is 5021516601666.

It is not a de Polignac number, because 6661066151205 - 2²⁴ = 6661049373989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 11382837 + ... + 11953706.

It is an arithmetic number, because the mean of its divisors is an integer number (481152864192).

Almost surely, 2^{6661066151205} is an apocalyptic number.

It is an amenable number.

6661066151205 is a deficient number, since it is larger than the sum of its proper divisors (4886602589403).

6661066151205 is a wasteful number, since it uses less digits than its factorization.

6661066151205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342897 (or 23342894 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 6661066151205 in words is "six trillion, six hundred sixty-one billion, sixty-six million, one hundred fifty-one thousand, two hundred five".