64332230661 has 12 divisors (see below), whose sum is σ = 96964521888. Its totient is φ = 41023451304.

The previous prime is 64332230647. The next prime is 64332230731. The reversal of 64332230661 is 16603223346.

64332230661 is a `hidden beast` number, since 643 + 3 + 2 + 2 + 3 + 0 + 6 + 6 + 1 = 666.

It is not a de Polignac number, because 64332230661 - 2⁵ = 64332230629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64332230621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155391655 + ... + 155392068.

It is an arithmetic number, because the mean of its divisors is an integer number (8080376824).

Almost surely, 2^64332230661 is an apocalyptic number.

It is an amenable number.

64332230661 is a deficient number, since it is larger than the sum of its proper divisors (32632291227).

64332230661 is a wasteful number, since it uses less digits than its factorization.

64332230661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310783752 (or 310783749 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 64332230661 in words is "sixty-four billion, three hundred thirty-two million, two hundred thirty thousand, six hundred sixty-one".