6464255161 has 16 divisors (see below), whose sum is σ = 7958772864. Its totient is φ = 5112797184.

The previous prime is 6464255159. The next prime is 6464255167. The reversal of 6464255161 is 1615524646.

It is a cyclic number.

It is not a de Polignac number, because 6464255161 - 2¹ = 6464255159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6464255167) 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, 291705 + ... + 313081.

It is an arithmetic number, because the mean of its divisors is an integer number (497423304).

Almost surely, 2^6464255161 is an apocalyptic number.

It is an amenable number.

6464255161 is a deficient number, since it is larger than the sum of its proper divisors (1494517703).

6464255161 is a wasteful number, since it uses less digits than its factorization.

6464255161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24720.

The product of its digits is 172800, while the sum is 40.

The square root of 6464255161 is about 80400.5917950857. The cubic root of 6464255161 is about 1862.8283136737.

The spelling of 6464255161 in words is "six billion, four hundred sixty-four million, two hundred fifty-five thousand, one hundred sixty-one".