64231605441 has 24 divisors (see below), whose sum is σ = 94885240320. Its totient is φ = 41851496256.

The previous prime is 64231605433. The next prime is 64231605467. The reversal of 64231605441 is 14450613246.

64231605441 is a `hidden beast` number, since 6 + 4 + 2 + 3 + 1 + 605 + 4 + 41 = 666.

It is not a de Polignac number, because 64231605441 - 2³ = 64231605433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64231605396 and 64231605405.

It is not an unprimeable number, because it can be changed into a prime (64231605421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198541 + ... + 409733.

It is an arithmetic number, because the mean of its divisors is an integer number (3953551680).

Almost surely, 2^64231605441 is an apocalyptic number.

It is an amenable number.

64231605441 is a deficient number, since it is larger than the sum of its proper divisors (30653634879).

64231605441 is a wasteful number, since it uses less digits than its factorization.

64231605441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211965 (or 211962 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 64231605441 in words is "sixty-four billion, two hundred thirty-one million, six hundred five thousand, four hundred forty-one".