11661166001 has 8 divisors (see below), whose sum is σ = 12560375520. Its totient is φ = 10790502912.

The previous prime is 11661165983. The next prime is 11661166007. The reversal of 11661166001 is 10066116611.

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 11661166001 - 2⁶ = 11661165937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11661166007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7135760 + ... + 7137393.

It is an arithmetic number, because the mean of its divisors is an integer number (1570046940).

Almost surely, 2^11661166001 is an apocalyptic number.

It is an amenable number.

11661166001 is a deficient number, since it is larger than the sum of its proper divisors (899209519).

11661166001 is a wasteful number, since it uses less digits than its factorization.

11661166001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273215.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 11661166001 in words is "eleven billion, six hundred sixty-one million, one hundred sixty-six thousand, one".