632671665 has 8 divisors (see below), whose sum is σ = 1012274688. Its totient is φ = 337424880.

The previous prime is 632671639. The next prime is 632671681. The reversal of 632671665 is 566176236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 632671665 - 2⁸ = 632671409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21089041 + ... + 21089070.

It is an arithmetic number, because the mean of its divisors is an integer number (126534336).

Almost surely, 2^632671665 is an apocalyptic number.

It is an amenable number.

632671665 is a deficient number, since it is larger than the sum of its proper divisors (379603023).

632671665 is a wasteful number, since it uses less digits than its factorization.

632671665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42178119.

The product of its digits is 272160, while the sum is 42.

The square root of 632671665 is about 25152.9653321432. The cubic root of 632671665 is about 858.4719869850.

It can be divided in two parts, 632671 and 665, that added together give a palindrome (633336).

The spelling of 632671665 in words is "six hundred thirty-two million, six hundred seventy-one thousand, six hundred sixty-five".