64335232008 has 24 divisors (see below), whose sum is σ = 174241253550. Its totient is φ = 21445077312.

The previous prime is 64335232007. The next prime is 64335232019. The reversal of 64335232008 is 80023253346.

It is a happy number.

64335232008 is a `hidden beast` number, since 643 + 3 + 5 + 2 + 3 + 2 + 0 + 0 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 32415121764 + 31920110244 = 180042^2 + 178662^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64335232007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446772373 + ... + 446772516.

Almost surely, 2^64335232008 is an apocalyptic number.

It is an amenable number.

64335232008 is an abundant number, since it is smaller than the sum of its proper divisors (109906021542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64335232008 is a wasteful number, since it uses less digits than its factorization.

64335232008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893544901 (or 893544894 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 64335232008 in words is "sixty-four billion, three hundred thirty-five million, two hundred thirty-two thousand, eight".