3065721120 has 576 divisors, whose sum is σ = 13367337984. Its totient is φ = 621250560.

The previous prime is 3065721107. The next prime is 3065721121. The reversal of 3065721120 is 211275603.

It is a happy number.

3065721120 is a `hidden beast` number, since 3 + 0 + 657 + 2 + 1 + 1 + 2 + 0 = 666.

It is a super-2 number, since 2×3065721120² = 18797291971228108800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3065721121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4767519 + ... + 4768161.

It is an arithmetic number, because the mean of its divisors is an integer number (23207184).

Almost surely, 2^3065721120 is an apocalyptic number.

3065721120 is a gapful number since it is divisible by the number (30) 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 3065721120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6683668992).

3065721120 is an abundant number, since it is smaller than the sum of its proper divisors (10301616864).

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

3065721120 is a wasteful number, since it uses less digits than its factorization.

3065721120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 3065721120 is about 55368.9544781189. The cubic root of 3065721120 is about 1452.7053922960.

Adding to 3065721120 its reverse (211275603), we get a palindrome (3276996723).

The spelling of 3065721120 in words is "three billion, sixty-five million, seven hundred twenty-one thousand, one hundred twenty".