2660678160 has 320 divisors, whose sum is σ = 10156492800. Its totient is φ = 562323456.

The previous prime is 2660678147. The next prime is 2660678171. The reversal of 2660678160 is 618760662.

It is a happy number.

It is a super-2 number, since 2×2660678160² = 14158416542201971200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1684251 + ... + 1685829.

It is an arithmetic number, because the mean of its divisors is an integer number (31739040).

Almost surely, 2^2660678160 is an apocalyptic number.

2660678160 is a gapful number since it is divisible by the number (20) 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 2660678160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5078246400).

2660678160 is an abundant number, since it is smaller than the sum of its proper divisors (7495814640).

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

2660678160 is a wasteful number, since it uses less digits than its factorization.

2660678160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2660678160 is about 51581.7618931343. The cubic root of 2660678160 is about 1385.6837210310.

The spelling of 2660678160 in words is "two billion, six hundred sixty million, six hundred seventy-eight thousand, one hundred sixty".