2757216660 has 96 divisors (see below), whose sum is σ = 8500972032. Its totient is φ = 662152320.

The previous prime is 2757216589. The next prime is 2757216661. The reversal of 2757216660 is 666127572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2757216661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51099 + ... + 90141.

It is an arithmetic number, because the mean of its divisors is an integer number (88551792).

Almost surely, 2^2757216660 is an apocalyptic number.

2757216660 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 2757216660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4250486016).

2757216660 is an abundant number, since it is smaller than the sum of its proper divisors (5743755372).

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

2757216660 is a wasteful number, since it uses less digits than its factorization.

2757216660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39173 (or 39171 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 2757216660 is about 52509.2054786587. The cubic root of 2757216660 is about 1402.2441321354.

The spelling of 2757216660 in words is "two billion, seven hundred fifty-seven million, two hundred sixteen thousand, six hundred sixty".