651544636332 has 24 divisors (see below), whose sum is σ = 1545193292272. Its totient is φ = 213621192000.

The previous prime is 651544636331. The next prime is 651544636381. The reversal of 651544636332 is 233636445156.

It is not an unprimeable number, because it can be changed into a prime (651544636331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445043419 + ... + 445044882.

Almost surely, 2^651544636332 is an apocalyptic number.

It is an amenable number.

651544636332 is an abundant number, since it is smaller than the sum of its proper divisors (893648655940).

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

651544636332 is a wasteful number, since it uses less digits than its factorization.

651544636332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890088369 (or 890088367 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 48.

The spelling of 651544636332 in words is "six hundred fifty-one billion, five hundred forty-four million, six hundred thirty-six thousand, three hundred thirty-two".