6616339554 has 64 divisors (see below), whose sum is σ = 14783938560. Its totient is φ = 1956817920.

The previous prime is 6616339553. The next prime is 6616339607. The reversal of 6616339554 is 4559336166.

It is not an unprimeable number, because it can be changed into a prime (6616339553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1185282 + ... + 1190850.

It is an arithmetic number, because the mean of its divisors is an integer number (230999040).

Almost surely, 2^6616339554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6616339554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7391969280).

6616339554 is an abundant number, since it is smaller than the sum of its proper divisors (8167599006).

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

6616339554 is a wasteful number, since it uses less digits than its factorization.

6616339554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015.

The product of its digits is 1749600, while the sum is 48.

The square root of 6616339554 is about 81340.8848857695. The cubic root of 6616339554 is about 1877.3241275374.

The spelling of 6616339554 in words is "six billion, six hundred sixteen million, three hundred thirty-nine thousand, five hundred fifty-four".