276660550081 has 2 divisors, whose sum is σ = 276660550082. Its totient is φ = 276660550080.

The previous prime is 276660550069. The next prime is 276660550109. The reversal of 276660550081 is 180055066672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256963831056 + 19696719025 = 506916^2 + 140345^2 .

It is a cyclic number.

It is not a de Polignac number, because 276660550081 - 2³⁵ = 242300811713 is a prime.

It is a super-2 number, since 2×276660550081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (276660550781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138330275040 + 138330275041.

It is an arithmetic number, because the mean of its divisors is an integer number (138330275041).

Almost surely, 2^276660550081 is an apocalyptic number.

It is an amenable number.

276660550081 is a deficient number, since it is larger than the sum of its proper divisors (1).

276660550081 is an equidigital number, since it uses as much as digits as its factorization.

276660550081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 276660550081 in words is "two hundred seventy-six billion, six hundred sixty million, five hundred fifty thousand, eighty-one".