6466581151 has 16 divisors (see below), whose sum is σ = 6662734848. Its totient is φ = 6273093600.

The previous prime is 6466581139. The next prime is 6466581157. The reversal of 6466581151 is 1511856646.

It is a cyclic number.

It is not a de Polignac number, because 6466581151 - 2¹¹ = 6466579103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6466581098 and 6466581107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466581157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3530806 + ... + 3532636.

It is an arithmetic number, because the mean of its divisors is an integer number (416420928).

Almost surely, 2^6466581151 is an apocalyptic number.

6466581151 is a deficient number, since it is larger than the sum of its proper divisors (196153697).

6466581151 is a wasteful number, since it uses less digits than its factorization.

6466581151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502.

The product of its digits is 172800, while the sum is 43.

The square root of 6466581151 is about 80415.0554995767. The cubic root of 6466581151 is about 1863.0517165938.

The spelling of 6466581151 in words is "six billion, four hundred sixty-six million, five hundred eighty-one thousand, one hundred fifty-one".