2661277116 has 12 divisors (see below), whose sum is σ = 6209646632. Its totient is φ = 887092368.

The previous prime is 2661277109. The next prime is 2661277139. The reversal of 2661277116 is 6117721662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110886535 + ... + 110886558.

Almost surely, 2^2661277116 is an apocalyptic number.

It is an amenable number.

2661277116 is an abundant number, since it is smaller than the sum of its proper divisors (3548369516).

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

2661277116 is a wasteful number, since it uses less digits than its factorization.

2661277116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221773100 (or 221773098 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 2661277116 is about 51587.5674557349. The cubic root of 2661277116 is about 1385.7876921814.

Adding to 2661277116 its reverse (6117721662), we get a palindrome (8778998778).

The spelling of 2661277116 in words is "two billion, six hundred sixty-one million, two hundred seventy-seven thousand, one hundred sixteen".