634113566 has 32 divisors (see below), whose sum is σ = 1041776640. Its totient is φ = 288302976.

The previous prime is 634113563. The next prime is 634113577. The reversal of 634113566 is 665311436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634113563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 123731 + ... + 128753.

It is an arithmetic number, because the mean of its divisors is an integer number (32555520).

Almost surely, 2^634113566 is an apocalyptic number.

634113566 is a deficient number, since it is larger than the sum of its proper divisors (407663074).

634113566 is a wasteful number, since it uses less digits than its factorization.

634113566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its digits is 38880, while the sum is 35.

The square root of 634113566 is about 25181.6116640695. The cubic root of 634113566 is about 859.1236638377.

The spelling of 634113566 in words is "six hundred thirty-four million, one hundred thirteen thousand, five hundred sixty-six".