13161254666 has 24 divisors (see below), whose sum is σ = 24173736480. Its totient is φ = 5343666552.

The previous prime is 13161254663. The next prime is 13161254699. The reversal of 13161254666 is 66645216131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13161254663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3532310 + ... + 3536033.

It is an arithmetic number, because the mean of its divisors is an integer number (1007239020).

Almost surely, 2^13161254666 is an apocalyptic number.

13161254666 is a deficient number, since it is larger than the sum of its proper divisors (11012481814).

13161254666 is a wasteful number, since it uses less digits than its factorization.

13161254666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068378 (or 7068371 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The spelling of 13161254666 in words is "thirteen billion, one hundred sixty-one million, two hundred fifty-four thousand, six hundred sixty-six".