6611578368 has 160 divisors (see below), whose sum is σ = 17942601600. Its totient is φ = 2163204096.

The previous prime is 6611578331. The next prime is 6611578381. The reversal of 6611578368 is 8638751166.

Its product of digits (1451520) is a multiple of the sum of its prime factors (512).

It is a self number, because there is not a number n which added to its sum of digits gives 6611578368.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36936103 + ... + 36936281.

It is an arithmetic number, because the mean of its divisors is an integer number (112141260).

Almost surely, 2^6611578368 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 6611578368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8971300800).

6611578368 is an abundant number, since it is smaller than the sum of its proper divisors (11331023232).

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

6611578368 is a wasteful number, since it uses less digits than its factorization.

6611578368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 496 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 6611578368 is about 81311.6127499633. The cubic root of 6611578368 is about 1876.8737055598.

The spelling of 6611578368 in words is "six billion, six hundred eleven million, five hundred seventy-eight thousand, three hundred sixty-eight".