6616746136 has 96 divisors (see below), whose sum is σ = 16749331200. Its totient is φ = 2379611520.

The previous prime is 6616746119. The next prime is 6616746163. The reversal of 6616746136 is 6316476166.

6616746136 = T₃₁₈₉₉ + T₃₁₉₀₀ + ... + T₃₁₉₁₁.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72325 + ... + 135883.

It is an arithmetic number, because the mean of its divisors is an integer number (174472200).

Almost surely, 2^6616746136 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 6616746136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8374665600).

6616746136 is an abundant number, since it is smaller than the sum of its proper divisors (10132585064).

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

6616746136 is a wasteful number, since it uses less digits than its factorization.

6616746136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63609 (or 63592 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 6616746136 is about 81343.3840948359. The cubic root of 6616746136 is about 1877.3625813561.

The spelling of 6616746136 in words is "six billion, six hundred sixteen million, seven hundred forty-six thousand, one hundred thirty-six".