4661616131 has 4 divisors (see below), whose sum is σ = 4664839152. Its totient is φ = 4658393112.

The previous prime is 4661616079. The next prime is 4661616139. The reversal of 4661616131 is 1316161664.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4661616131 is a prime.

It is a super-2 number, since 2×4661616131² = 43461329905598818322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4661616091 and 4661616100.

It is not an unprimeable number, because it can be changed into a prime (4661616139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609340 + ... + 1612233.

It is an arithmetic number, because the mean of its divisors is an integer number (1166209788).

Almost surely, 2^4661616131 is an apocalyptic number.

4661616131 is a deficient number, since it is larger than the sum of its proper divisors (3223021).

4661616131 is a wasteful number, since it uses less digits than its factorization.

4661616131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223020.

The product of its digits is 15552, while the sum is 35.

The square root of 4661616131 is about 68276.0289633192. The cubic root of 4661616131 is about 1670.4962407091.

Adding to 4661616131 its reverse (1316161664), we get a palindrome (5977777795).

The spelling of 4661616131 in words is "four billion, six hundred sixty-one million, six hundred sixteen thousand, one hundred thirty-one".