276620066650691 has 2 divisors, whose sum is σ = 276620066650692. Its totient is φ = 276620066650690.

The previous prime is 276620066650657. The next prime is 276620066650703. The reversal of 276620066650691 is 196056660026672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276620066650691 is a prime.

It is a super-2 number, since 2×276620066650691² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (276620066650621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138310033325345 + 138310033325346.

It is an arithmetic number, because the mean of its divisors is an integer number (138310033325346).

Almost surely, 2^{276620066650691} is an apocalyptic number.

276620066650691 is a deficient number, since it is larger than the sum of its proper divisors (1).

276620066650691 is an equidigital number, since it uses as much as digits as its factorization.

276620066650691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 276620066650691 in words is "two hundred seventy-six trillion, six hundred twenty billion, sixty-six million, six hundred fifty thousand, six hundred ninety-one".