6400658611 has 4 divisors (see below), whose sum is σ = 6737535400. Its totient is φ = 6063781824.

The previous prime is 6400658597. The next prime is 6400658617. The reversal of 6400658611 is 1168560046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6400658611 - 2¹³ = 6400650419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6400658617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168438366 + ... + 168438403.

It is an arithmetic number, because the mean of its divisors is an integer number (1684383850).

Almost surely, 2^6400658611 is an apocalyptic number.

6400658611 is a deficient number, since it is larger than the sum of its proper divisors (336876789).

6400658611 is a wasteful number, since it uses less digits than its factorization.

6400658611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336876788.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 6400658611 is about 80004.1162128549. The cubic root of 6400658611 is about 1856.6992187911.

The spelling of 6400658611 in words is "six billion, four hundred million, six hundred fifty-eight thousand, six hundred eleven".