2640308160 has 504 divisors, whose sum is σ = 10266755184. Its totient is φ = 572866560.

The previous prime is 2640308149. The next prime is 2640308183. The reversal of 2640308160 is 618030462.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64397740 + ... + 64397780.

It is an arithmetic number, because the mean of its divisors is an integer number (20370546).

Almost surely, 2^2640308160 is an apocalyptic number.

2640308160 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 2640308160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5133377592).

2640308160 is an abundant number, since it is smaller than the sum of its proper divisors (7626447024).

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

2640308160 is a wasteful number, since it uses less digits than its factorization.

2640308160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2640308160 is about 51383.9290050887. The cubic root of 2640308160 is about 1382.1384195671.

The spelling of 2640308160 in words is "two billion, six hundred forty million, three hundred eight thousand, one hundred sixty".