634061616264 has 48 divisors (see below), whose sum is σ = 1717458900300. Its totient is φ = 211328187264.

The previous prime is 634061616263. The next prime is 634061616373. The reversal of 634061616264 is 462616160436.

634061616264 is a `hidden beast` number, since 6 + 3 + 4 + 0 + 6 + 1 + 616 + 26 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 631004632164 + 3056984100 = 794358^2 + 55290^2 .

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 11 ways as a sum of consecutive naturals, for example, 66142 + ... + 1128050.

Almost surely, 2^634061616264 is an apocalyptic number.

It is an amenable number.

634061616264 is an abundant number, since it is smaller than the sum of its proper divisors (1083397284036).

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

634061616264 is a wasteful number, since it uses less digits than its factorization.

634061616264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070214 (or 1070207 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 634061616264 in words is "six hundred thirty-four billion, sixty-one million, six hundred sixteen thousand, two hundred sixty-four".