2771665340 has 48 divisors (see below), whose sum is σ = 5912948160. Its totient is φ = 1091112960.

The previous prime is 2771665333. The next prime is 2771665373. The reversal of 2771665340 is 435661772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005404 + ... + 1008156.

It is an arithmetic number, because the mean of its divisors is an integer number (123186420).

Almost surely, 2^2771665340 is an apocalyptic number.

2771665340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2771665340 is an abundant number, since it is smaller than the sum of its proper divisors (3141282820).

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

2771665340 is a wasteful number, since it uses less digits than its factorization.

2771665340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 2771665340 is about 52646.6080578797. The cubic root of 2771665340 is about 1404.6892656792.

The spelling of 2771665340 in words is "two billion, seven hundred seventy-one million, six hundred sixty-five thousand, three hundred forty".