611220241057 has 2 divisors, whose sum is σ = 611220241058. Its totient is φ = 611220241056.

The previous prime is 611220241031. The next prime is 611220241067. The reversal of 611220241057 is 750142022116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606577726561 + 4642514496 = 778831^2 + 68136^2 .

It is a cyclic number.

It is not a de Polignac number, because 611220241057 - 2¹⁵ = 611220208289 is a prime.

It is not a weakly prime, because it can be changed into another prime (611220241067) 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, 305610120528 + 305610120529.

It is an arithmetic number, because the mean of its divisors is an integer number (305610120529).

Almost surely, 2^611220241057 is an apocalyptic number.

It is an amenable number.

611220241057 is a deficient number, since it is larger than the sum of its proper divisors (1).

611220241057 is an equidigital number, since it uses as much as digits as its factorization.

611220241057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 611220241057 in words is "six hundred eleven billion, two hundred twenty million, two hundred forty-one thousand, fifty-seven".