5134633661 has 8 divisors (see below), whose sum is σ = 5172430200. Its totient is φ = 5096901888.

The previous prime is 5134633639. The next prime is 5134633723. The reversal of 5134633661 is 1663364315.

It can be written as a sum of positive squares in 4 ways, for example, as 1953109636 + 3181524025 = 44194^2 + 56405^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5134633661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5134633601) 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, 149105 + ... + 180281.

It is an arithmetic number, because the mean of its divisors is an integer number (646553775).

Almost surely, 2^5134633661 is an apocalyptic number.

It is an amenable number.

5134633661 is a deficient number, since it is larger than the sum of its proper divisors (37796539).

5134633661 is a wasteful number, since it uses less digits than its factorization.

5134633661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32383.

The product of its digits is 116640, while the sum is 38.

The square root of 5134633661 is about 71656.3581338041. The cubic root of 5134633661 is about 1725.1882352593.

Adding to 5134633661 its reverse (1663364315), we get a palindrome (6797997976).

The spelling of 5134633661 in words is "five billion, one hundred thirty-four million, six hundred thirty-three thousand, six hundred sixty-one".