11100666601 has 4 divisors (see below), whose sum is σ = 11282644804. Its totient is φ = 10918688400.

The previous prime is 11100666547. The next prime is 11100666653. The reversal of 11100666601 is 10666600111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10666600111 = 281 ⋅37959431.

It can be written as a sum of positive squares in 2 ways, for example, as 3939445225 + 7161221376 = 62765^2 + 84624^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100666601 - 2⁹ = 11100666089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11100666601.

It is not an unprimeable number, because it can be changed into a prime (11100666701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90989010 + ... + 90989131.

It is an arithmetic number, because the mean of its divisors is an integer number (2820661201).

Almost surely, 2^11100666601 is an apocalyptic number.

It is an amenable number.

11100666601 is a deficient number, since it is larger than the sum of its proper divisors (181978203).

11100666601 is an equidigital number, since it uses as much as digits as its factorization.

11100666601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181978202.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 11100666601 in words is "eleven billion, one hundred million, six hundred sixty-six thousand, six hundred one".