4064156641 has 8 divisors (see below), whose sum is σ = 4081470120. Its totient is φ = 4046860032.

The previous prime is 4064156617. The next prime is 4064156647. The reversal of 4064156641 is 1466514604.

It can be written as a sum of positive squares in 4 ways, for example, as 740057616 + 3324099025 = 27204^2 + 57655^2 .

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 4064156641 - 2¹¹ = 4064154593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4064156641.

It is not an unprimeable number, because it can be changed into a prime (4064156647) 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, 759411 + ... + 764743.

It is an arithmetic number, because the mean of its divisors is an integer number (510183765).

Almost surely, 2^4064156641 is an apocalyptic number.

It is an amenable number.

4064156641 is a deficient number, since it is larger than the sum of its proper divisors (17313479).

4064156641 is a wasteful number, since it uses less digits than its factorization.

4064156641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8435.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 4064156641 is about 63750.7383565085. The cubic root of 4064156641 is about 1595.8429379227.

The spelling of 4064156641 in words is "four billion, sixty-four million, one hundred fifty-six thousand, six hundred forty-one".