2166341913 has 24 divisors (see below), whose sum is σ = 3145728768. Its totient is φ = 1436605632.

The previous prime is 2166341899. The next prime is 2166341929. The reversal of 2166341913 is 3191436612.

2166341913 is a `hidden beast` number, since 2 + 1 + 6 + 634 + 1 + 9 + 13 = 666.

It is not a de Polignac number, because 2166341913 - 2⁸ = 2166341657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2166341993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2037420 + ... + 2038482.

It is an arithmetic number, because the mean of its divisors is an integer number (131072032).

Almost surely, 2^2166341913 is an apocalyptic number.

It is an amenable number.

2166341913 is a deficient number, since it is larger than the sum of its proper divisors (979386855).

2166341913 is a wasteful number, since it uses less digits than its factorization.

2166341913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2050 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 2166341913 is about 46543.9782678705. The cubic root of 2166341913 is about 1293.9246924506.

The spelling of 2166341913 in words is "two billion, one hundred sixty-six million, three hundred forty-one thousand, nine hundred thirteen".