3161624661 has 12 divisors (see below), whose sum is σ = 4918082988. Its totient is φ = 1945615104.

The previous prime is 3161624659. The next prime is 3161624707. The reversal of 3161624661 is 1664261613.

It is a happy number.

3161624661 is a `hidden beast` number, since 31 + 6 + 162 + 466 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 234273636 + 2927351025 = 15306^2 + 54105^2 .

It is not a de Polignac number, because 3161624661 - 2¹ = 3161624659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161624611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13511100 + ... + 13511333.

It is an arithmetic number, because the mean of its divisors is an integer number (409840249).

Almost surely, 2^3161624661 is an apocalyptic number.

It is an amenable number.

3161624661 is a deficient number, since it is larger than the sum of its proper divisors (1756458327).

3161624661 is a wasteful number, since it uses less digits than its factorization.

3161624661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27022452 (or 27022449 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 3161624661 is about 56228.3261443910. The cubic root of 3161624661 is about 1467.6982288788.

The spelling of 3161624661 in words is "three billion, one hundred sixty-one million, six hundred twenty-four thousand, six hundred sixty-one".