2180106601 has 4 divisors (see below), whose sum is σ = 2180254804. Its totient is φ = 2179958400.

The previous prime is 2180106559. The next prime is 2180106629. The reversal of 2180106601 is 1066010812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 329386201 + 1850720400 = 18149^2 + 43020^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180106601 - 2⁷ = 2180106473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180106671) 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, 49260 + ... + 82381.

It is an arithmetic number, because the mean of its divisors is an integer number (545063701).

Almost surely, 2^2180106601 is an apocalyptic number.

It is an amenable number.

2180106601 is a deficient number, since it is larger than the sum of its proper divisors (148203).

2180106601 is a wasteful number, since it uses less digits than its factorization.

2180106601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148202.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2180106601 is about 46691.6116770454. The cubic root of 2180106601 is about 1296.6593916350.

The spelling of 2180106601 in words is "two billion, one hundred eighty million, one hundred six thousand, six hundred one".