3116621543 has 16 divisors (see below), whose sum is σ = 3810268224. Its totient is φ = 2488320000.

The previous prime is 3116621537. The next prime is 3116621567. The reversal of 3116621543 is 3451266113.

It is a cyclic number.

It is not a de Polignac number, because 3116621543 - 2¹⁴ = 3116605159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3116621143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123458 + ... + 146543.

It is an arithmetic number, because the mean of its divisors is an integer number (238141764).

Almost surely, 2^3116621543 is an apocalyptic number.

3116621543 is a deficient number, since it is larger than the sum of its proper divisors (693646681).

3116621543 is a wasteful number, since it uses less digits than its factorization.

3116621543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270122.

The product of its digits is 12960, while the sum is 32.

The square root of 3116621543 is about 55826.7099424639. The cubic root of 3116621543 is about 1460.7010992852.

Adding to 3116621543 its reverse (3451266113), we get a palindrome (6567887656).

The spelling of 3116621543 in words is "three billion, one hundred sixteen million, six hundred twenty-one thousand, five hundred forty-three".