4166125022261 has 4 divisors (see below), whose sum is σ = 4267737827724. Its totient is φ = 4064512216800.

The previous prime is 4166125022251. The next prime is 4166125022299. The reversal of 4166125022261 is 1622205216614.

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 386269708036 + 3779855314225 = 621506^2 + 1944185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4166125022261 is a prime.

It is a super-2 number, since 2×4166125022261² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4166125022251) 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, 50806402670 + ... + 50806402751.

It is an arithmetic number, because the mean of its divisors is an integer number (1066934456931).

Almost surely, 2^{4166125022261} is an apocalyptic number.

4166125022261 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4166125022261 is a deficient number, since it is larger than the sum of its proper divisors (101612805463).

4166125022261 is a wasteful number, since it uses less digits than its factorization.

4166125022261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101612805462.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 4166125022261 in words is "four trillion, one hundred sixty-six billion, one hundred twenty-five million, twenty-two thousand, two hundred sixty-one".