634061616265 has 24 divisors (see below), whose sum is σ = 965561738112. Its totient is φ = 395259187680.

The previous prime is 634061616263. The next prime is 634061616373. The reversal of 634061616265 is 562616160436.

It is a happy number.

It is not a de Polignac number, because 634061616265 - 2¹ = 634061616263 is a prime.

It is a super-2 number, since 2×634061616265² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634061616263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117633969 + ... + 117639358.

It is an arithmetic number, because the mean of its divisors is an integer number (40231739088).

Almost surely, 2^634061616265 is an apocalyptic number.

It is an amenable number.

634061616265 is a deficient number, since it is larger than the sum of its proper divisors (331500121847).

634061616265 is a wasteful number, since it uses less digits than its factorization.

634061616265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235273357 (or 235273350 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 634061616265 in words is "six hundred thirty-four billion, sixty-one million, six hundred sixteen thousand, two hundred sixty-five".