2765616664 has 32 divisors (see below), whose sum is σ = 5251780800. Its totient is φ = 1365212160.

The previous prime is 2765616653. The next prime is 2765616673. The reversal of 2765616664 is 4666165672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330322 + ... + 338590.

It is an arithmetic number, because the mean of its divisors is an integer number (164118150).

Almost surely, 2^2765616664 is an apocalyptic number.

It is an amenable number.

2765616664 is a deficient number, since it is larger than the sum of its proper divisors (2486164136).

2765616664 is a wasteful number, since it uses less digits than its factorization.

2765616664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8803 (or 8799 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The square root of 2765616664 is about 52589.1306640450. The cubic root of 2765616664 is about 1403.6666917117. Note that the first 4 decimals are identical.

The spelling of 2765616664 in words is "two billion, seven hundred sixty-five million, six hundred sixteen thousand, six hundred sixty-four".