2111656149049 has 2 divisors, whose sum is σ = 2111656149050. Its totient is φ = 2111656149048.

The previous prime is 2111656149041. The next prime is 2111656149067. The reversal of 2111656149049 is 9409416561112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1563712735225 + 547943413824 = 1250485^2 + 740232^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111656149049 - 2³ = 2111656149041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111656148993 and 2111656149011.

It is not a weakly prime, because it can be changed into another prime (2111656149041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055828074524 + 1055828074525.

It is an arithmetic number, because the mean of its divisors is an integer number (1055828074525).

Almost surely, 2^{2111656149049} is an apocalyptic number.

It is an amenable number.

2111656149049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111656149049 is an equidigital number, since it uses as much as digits as its factorization.

2111656149049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 2111656149049 in words is "two trillion, one hundred eleven billion, six hundred fifty-six million, one hundred forty-nine thousand, forty-nine".