4151660066641 has 4 divisors (see below), whose sum is σ = 4153027096372. Its totient is φ = 4150293036912.

The previous prime is 4151660066633. The next prime is 4151660066647. The reversal of 4151660066641 is 1466600661514.

4151660066641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3131147945025 + 1020512121616 = 1769505^2 + 1010204^2 .

It is a cyclic number.

It is not a de Polignac number, because 4151660066641 - 2³ = 4151660066633 is a prime.

It is a super-2 number, since 2×4151660066641² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4151660066591 and 4151660066600.

It is not an unprimeable number, because it can be changed into a prime (4151660066647) 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, 683510310 + ... + 683516383.

It is an arithmetic number, because the mean of its divisors is an integer number (1038256774093).

Almost surely, 2^{4151660066641} is an apocalyptic number.

It is an amenable number.

4151660066641 is a deficient number, since it is larger than the sum of its proper divisors (1367029731).

4151660066641 is a wasteful number, since it uses less digits than its factorization.

4151660066641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367029730.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 4151660066641 in words is "four trillion, one hundred fifty-one billion, six hundred sixty million, sixty-six thousand, six hundred forty-one".