100666611655 has 8 divisors (see below), whose sum is σ = 120880530000. Its totient is φ = 80479558656.

The previous prime is 100666611641. The next prime is 100666611763. The reversal of 100666611655 is 556116666001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100666611655 - 2²⁹ = 100129740743 is a prime.

It is a congruent number.

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, 6708090 + ... + 6723079.

It is an arithmetic number, because the mean of its divisors is an integer number (15110066250).

Almost surely, 2^100666611655 is an apocalyptic number.

100666611655 is a deficient number, since it is larger than the sum of its proper divisors (20213918345).

100666611655 is a wasteful number, since it uses less digits than its factorization.

100666611655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13432673.

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

The spelling of 100666611655 in words is "one hundred billion, six hundred sixty-six million, six hundred eleven thousand, six hundred fifty-five".