65756915461 has 2 divisors, whose sum is σ = 65756915462. Its totient is φ = 65756915460.

The previous prime is 65756915437. The next prime is 65756915489. The reversal of 65756915461 is 16451965756.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45356220900 + 20400694561 = 212970^2 + 142831^2 .

It is a cyclic number.

It is not a de Polignac number, because 65756915461 - 2⁷ = 65756915333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65756915431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32878457730 + 32878457731.

It is an arithmetic number, because the mean of its divisors is an integer number (32878457731).

Almost surely, 2^65756915461 is an apocalyptic number.

It is an amenable number.

65756915461 is a deficient number, since it is larger than the sum of its proper divisors (1).

65756915461 is an equidigital number, since it uses as much as digits as its factorization.

65756915461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804000, while the sum is 55.

The spelling of 65756915461 in words is "sixty-five billion, seven hundred fifty-six million, nine hundred fifteen thousand, four hundred sixty-one".