6666501120 has 352 divisors, whose sum is σ = 22921159680. Its totient is φ = 1648558080.

The previous prime is 6666501097. The next prime is 6666501131. The reversal of 6666501120 is 211056666.

It is a super-2 number, since 2×6666501120² = 88884474365922508800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15467305 + ... + 15467735.

Almost surely, 2^6666501120 is an apocalyptic number.

6666501120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6666501120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11460579840).

6666501120 is an abundant number, since it is smaller than the sum of its proper divisors (16254658560).

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

6666501120 is a wasteful number, since it uses less digits than its factorization.

6666501120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 6666501120 is about 81648.6443243242. The cubic root of 6666501120 is about 1882.0564790953.

Adding to 6666501120 its reverse (211056666), we get a palindrome (6877557786).

The spelling of 6666501120 in words is "six billion, six hundred sixty-six million, five hundred one thousand, one hundred twenty".