65761051061 has 2 divisors, whose sum is σ = 65761051062. Its totient is φ = 65761051060.

The previous prime is 65761051051. The next prime is 65761051087. The reversal of 65761051061 is 16015016756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54700322161 + 11060728900 = 233881^2 + 105170^2 .

It is a cyclic number.

It is not a de Polignac number, because 65761051061 - 2²² = 65756856757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65761051051) 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, 32880525530 + 32880525531.

It is an arithmetic number, because the mean of its divisors is an integer number (32880525531).

Almost surely, 2^65761051061 is an apocalyptic number.

It is an amenable number.

65761051061 is a deficient number, since it is larger than the sum of its proper divisors (1).

65761051061 is an equidigital number, since it uses as much as digits as its factorization.

65761051061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 65761051061 in words is "sixty-five billion, seven hundred sixty-one million, fifty-one thousand, sixty-one".