100166606601 has 4 divisors (see below), whose sum is σ = 133555475472. Its totient is φ = 66777737732.

The previous prime is 100166606563. The next prime is 100166606609. The reversal of 100166606601 is 106606661001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106606661001 = 3 ⋅35535553667.

It is a cyclic number.

It is not a de Polignac number, because 100166606601 - 2¹⁰ = 100166605577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100166606609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16694434431 + ... + 16694434436.

It is an arithmetic number, because the mean of its divisors is an integer number (33388868868).

Almost surely, 2^100166606601 is an apocalyptic number.

It is an amenable number.

100166606601 is a deficient number, since it is larger than the sum of its proper divisors (33388868871).

100166606601 is an equidigital number, since it uses as much as digits as its factorization.

100166606601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33388868870.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 100166606601 in words is "one hundred billion, one hundred sixty-six million, six hundred six thousand, six hundred one".