61368255523111 has 2 divisors, whose sum is σ = 61368255523112. Its totient is φ = 61368255523110.

The previous prime is 61368255523033. The next prime is 61368255523163. The reversal of 61368255523111 is 11132555286316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61368255523111 - 2⁹ = 61368255522599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61368255523511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30684127761555 + 30684127761556.

It is an arithmetic number, because the mean of its divisors is an integer number (30684127761556).

Almost surely, 2^{61368255523111} is an apocalyptic number.

61368255523111 is a deficient number, since it is larger than the sum of its proper divisors (1).

61368255523111 is an equidigital number, since it uses as much as digits as its factorization.

61368255523111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296000, while the sum is 49.

The spelling of 61368255523111 in words is "sixty-one trillion, three hundred sixty-eight billion, two hundred fifty-five million, five hundred twenty-three thousand, one hundred eleven".