2600771616 has 36 divisors (see below), whose sum is σ = 7395945102. Its totient is φ = 866923776.

The previous prime is 2600771611. The next prime is 2600771653. The reversal of 2600771616 is 6161770062.

It can be written as a sum of positive squares in only one way, i.e., 1955408400 + 645363216 = 44220^2 + 25404^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2600771611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4514941 + ... + 4515516.

Almost surely, 2^2600771616 is an apocalyptic number.

It is an amenable number.

2600771616 is an abundant number, since it is smaller than the sum of its proper divisors (4795173486).

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

2600771616 is a wasteful number, since it uses less digits than its factorization.

2600771616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9030473 (or 9030462 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2600771616 is about 50997.7608920235. The cubic root of 2600771616 is about 1375.2048824837.

The spelling of 2600771616 in words is "two billion, six hundred million, seven hundred seventy-one thousand, six hundred sixteen".