4161634452 has 18 divisors (see below), whose sum is σ = 10519687178. Its totient is φ = 1387211472.

The previous prime is 4161634423. The next prime is 4161634453. The reversal of 4161634452 is 2544361614.

4161634452 is a `hidden beast` number, since 4 + 1 + 616 + 34 + 4 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4101633936 + 60000516 = 64044^2 + 7746^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 115600957 = 4161634452 / (4 + 1 + 6 + 1 + 6 + 3 + 4 + 4 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4161634453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57800443 + ... + 57800514.

Almost surely, 2^4161634452 is an apocalyptic number.

It is an amenable number.

4161634452 is an abundant number, since it is smaller than the sum of its proper divisors (6358052726).

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

4161634452 is a wasteful number, since it uses less digits than its factorization.

4161634452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115600967 (or 115600962 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 4161634452 is about 64510.7312933282. The cubic root of 4161634452 is about 1608.5009067299.

The spelling of 4161634452 in words is "four billion, one hundred sixty-one million, six hundred thirty-four thousand, four hundred fifty-two".