634416161 has 8 divisors (see below), whose sum is σ = 641356704. Its totient is φ = 627494560.

The previous prime is 634416157. The next prime is 634416163. The reversal of 634416161 is 161614436.

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

It is a cyclic number.

It is not a de Polignac number, because 634416161 - 2² = 634416157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634416163) 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, 68741 + ... + 77421.

It is an arithmetic number, because the mean of its divisors is an integer number (80169588).

Almost surely, 2^634416161 is an apocalyptic number.

It is an amenable number.

634416161 is a deficient number, since it is larger than the sum of its proper divisors (6940543).

634416161 is a wasteful number, since it uses less digits than its factorization.

634416161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471.

The product of its digits is 10368, while the sum is 32.

The square root of 634416161 is about 25187.6192007105. The cubic root of 634416161 is about 859.2602982402.

The spelling of 634416161 in words is "six hundred thirty-four million, four hundred sixteen thousand, one hundred sixty-one".