6616697472 has 384 divisors, whose sum is σ = 24014390400. Its totient is φ = 1698693120.

The previous prime is 6616697467. The next prime is 6616697519. The reversal of 6616697472 is 2747966166.

6616697472 is a `hidden beast` number, since 6 + 6 + 166 + 9 + 7 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8603904 + ... + 8604672.

It is an arithmetic number, because the mean of its divisors is an integer number (62537475).

Almost surely, 2^6616697472 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 6616697472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12007195200).

6616697472 is an abundant number, since it is smaller than the sum of its proper divisors (17397692928).

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

6616697472 is a wasteful number, since it uses less digits than its factorization.

6616697472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 889 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 6616697472 is about 81343.0849673161. The cubic root of 6616697472 is about 1877.3579788826.

The spelling of 6616697472 in words is "six billion, six hundred sixteen million, six hundred ninety-seven thousand, four hundred seventy-two".