6161336656 has 60 divisors (see below), whose sum is σ = 12855525532. Its totient is φ = 2859577344.

The previous prime is 6161336653. The next prime is 6161336677. The reversal of 6161336656 is 6566331616.

It can be written as a sum of positive squares in 6 ways, for example, as 8503056 + 6152833600 = 2916^2 + 78440^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161336653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328426 + ... + 346678.

Almost surely, 2^6161336656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6161336656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6427762766).

6161336656 is an abundant number, since it is smaller than the sum of its proper divisors (6694188876).

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

6161336656 is a wasteful number, since it uses less digits than its factorization.

6161336656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18368 (or 18345 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The square root of 6161336656 is about 78494.1823067162. The cubic root of 6161336656 is about 1833.2638714252.

The spelling of 6161336656 in words is "six billion, one hundred sixty-one million, three hundred thirty-six thousand, six hundred fifty-six".