64043455311 has 48 divisors (see below), whose sum is σ = 106747460352. Its totient is φ = 36617961600.

The previous prime is 64043455253. The next prime is 64043455313. The reversal of 64043455311 is 11355434046.

64043455311 is a `hidden beast` number, since 6 + 40 + 43 + 45 + 531 + 1 = 666.

It is not a de Polignac number, because 64043455311 - 2⁷ = 64043455183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64043455313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26425 + ... + 358866.

It is an arithmetic number, because the mean of its divisors is an integer number (2223905424).

Almost surely, 2^64043455311 is an apocalyptic number.

64043455311 is a deficient number, since it is larger than the sum of its proper divisors (42704005041).

64043455311 is a wasteful number, since it uses less digits than its factorization.

64043455311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385404 (or 385401 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 64043455311 its reverse (11355434046), we get a palindrome (75398889357).

The spelling of 64043455311 in words is "sixty-four billion, forty-three million, four hundred fifty-five thousand, three hundred eleven".