11661161666102 has 32 divisors (see below), whose sum is σ = 19305313584480. Its totient is φ = 5248462452480.

The previous prime is 11661161666053. The next prime is 11661161666117. The reversal of 11661161666102 is 20166616116611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47477 + ... + 4829552.

It is an arithmetic number, because the mean of its divisors is an integer number (603291049515).

Almost surely, 2^{11661161666102} is an apocalyptic number.

11661161666102 is a deficient number, since it is larger than the sum of its proper divisors (7644151918378).

11661161666102 is a wasteful number, since it uses less digits than its factorization.

11661161666102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879328.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 11661161666102 in words is "eleven trillion, six hundred sixty-one billion, one hundred sixty-one million, six hundred sixty-six thousand, one hundred two".