2566762916 has 6 divisors (see below), whose sum is σ = 4491835110. Its totient is φ = 1283381456.

The previous prime is 2566762903. The next prime is 2566762931. The reversal of 2566762916 is 6192676652.

It can be written as a sum of positive squares in only one way, i.e., 1717273600 + 849489316 = 41440^2 + 29146^2 .

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 as a sum of consecutive naturals, namely, 320845361 + ... + 320845368.

It is an arithmetic number, because the mean of its divisors is an integer number (748639185).

Almost surely, 2^2566762916 is an apocalyptic number.

It is an amenable number.

2566762916 is a deficient number, since it is larger than the sum of its proper divisors (1925072194).

2566762916 is a wasteful number, since it uses less digits than its factorization.

2566762916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641690733 (or 641690731 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 2566762916 is about 50663.2304141771. The cubic root of 2566762916 is about 1369.1843255826.

The spelling of 2566762916 in words is "two billion, five hundred sixty-six million, seven hundred sixty-two thousand, nine hundred sixteen".