83611150744661 has 2 divisors, whose sum is σ = 83611150744662. Its totient is φ = 83611150744660.

The previous prime is 83611150744657. The next prime is 83611150744687. The reversal of 83611150744661 is 16644705111638.

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., 63127696746436 + 20483453998225 = 7945294^2 + 4525865^2 .

It is a cyclic number.

It is not a de Polignac number, because 83611150744661 - 2² = 83611150744657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83611150744621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41805575372330 + 41805575372331.

It is an arithmetic number, because the mean of its divisors is an integer number (41805575372331).

Almost surely, 2^{83611150744661} is an apocalyptic number.

It is an amenable number.

83611150744661 is a deficient number, since it is larger than the sum of its proper divisors (1).

83611150744661 is an equidigital number, since it uses as much as digits as its factorization.

83611150744661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 83611150744661 in words is "eighty-three trillion, six hundred eleven billion, one hundred fifty million, seven hundred forty-four thousand, six hundred sixty-one".