611110561049 has 2 divisors, whose sum is σ = 611110561050. Its totient is φ = 611110561048.

The previous prime is 611110561031. The next prime is 611110561093. The reversal of 611110561049 is 940165011116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 570319488025 + 40791073024 = 755195^2 + 201968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611110561049 is a prime.

It is a super-2 number, since 2×611110561049² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (611110561349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305555280524 + 305555280525.

It is an arithmetic number, because the mean of its divisors is an integer number (305555280525).

Almost surely, 2^611110561049 is an apocalyptic number.

It is an amenable number.

611110561049 is a deficient number, since it is larger than the sum of its proper divisors (1).

611110561049 is an equidigital number, since it uses as much as digits as its factorization.

611110561049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 35.

The spelling of 611110561049 in words is "six hundred eleven billion, one hundred ten million, five hundred sixty-one thousand, forty-nine".