6665756160 has 240 divisors, whose sum is σ = 24790105296. Its totient is φ = 1523515392.

The previous prime is 6665756147. The next prime is 6665756161. The reversal of 6665756160 is 616575666.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665756161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367464 + ... + 385176.

Almost surely, 2^6665756160 is an apocalyptic number.

6665756160 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 6665756160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12395052648).

6665756160 is an abundant number, since it is smaller than the sum of its proper divisors (18124349136).

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

6665756160 is a wasteful number, since it uses less digits than its factorization.

6665756160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17753 (or 17730 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The square root of 6665756160 is about 81644.0822105313. The cubic root of 6665756160 is about 1881.9863719033.

The spelling of 6665756160 in words is "six billion, six hundred sixty-five million, seven hundred fifty-six thousand, one hundred sixty".