2705661760 has 28 divisors (see below), whose sum is σ = 6442857828. Its totient is φ = 1082264576.

The previous prime is 2705661743. The next prime is 2705661767. The reversal of 2705661760 is 671665072.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1127347776 + 1578313984 = 33576^2 + 39728^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705661767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4227277 + ... + 4227916.

Almost surely, 2^2705661760 is an apocalyptic number.

2705661760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2705661760 is an abundant number, since it is smaller than the sum of its proper divisors (3737196068).

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

2705661760 is an equidigital number, since it uses as much as digits as its factorization.

2705661760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455210 (or 8455200 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 2705661760 is about 52015.9760073768. The cubic root of 2705661760 is about 1393.4492876544.

The spelling of 2705661760 in words is "two billion, seven hundred five million, six hundred sixty-one thousand, seven hundred sixty".