61100085653 has 2 divisors, whose sum is σ = 61100085654. Its totient is φ = 61100085652.

The previous prime is 61100085647. The next prime is 61100085731. The reversal of 61100085653 is 35658000116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59779272004 + 1320813649 = 244498^2 + 36343^2 .

It is a cyclic number.

It is not a de Polignac number, because 61100085653 - 2⁴ = 61100085637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61100088653) 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, 30550042826 + 30550042827.

It is an arithmetic number, because the mean of its divisors is an integer number (30550042827).

Almost surely, 2^61100085653 is an apocalyptic number.

It is an amenable number.

61100085653 is a deficient number, since it is larger than the sum of its proper divisors (1).

61100085653 is an equidigital number, since it uses as much as digits as its factorization.

61100085653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 61100085653 its reverse (35658000116), we get a palindrome (96758085769).

The spelling of 61100085653 in words is "sixty-one billion, one hundred million, eighty-five thousand, six hundred fifty-three".