6401233552 has 40 divisors (see below), whose sum is σ = 14184824256. Its totient is φ = 2741321856.

The previous prime is 6401233547. The next prime is 6401233607. The reversal of 6401233552 is 2553321046.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132963 + ... + 174589.

Almost surely, 2^6401233552 is an apocalyptic number.

It is an amenable number.

6401233552 is an abundant number, since it is smaller than the sum of its proper divisors (7783590704).

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

6401233552 is a wasteful number, since it uses less digits than its factorization.

6401233552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43015 (or 43009 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 6401233552 is about 80007.7093285391. The cubic root of 6401233552 is about 1856.7548099737.

Adding to 6401233552 its reverse (2553321046), we get a palindrome (8954554598).

The spelling of 6401233552 in words is "six billion, four hundred one million, two hundred thirty-three thousand, five hundred fifty-two".