50660070661 has 2 divisors, whose sum is σ = 50660070662. Its totient is φ = 50660070660.

The previous prime is 50660070647. The next prime is 50660070667. The reversal of 50660070661 is 16607006605.

It is a happy number.

50660070661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50341448161 + 318622500 = 224369^2 + 17850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50660070661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50660070661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50660070667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25330035330 + 25330035331.

It is an arithmetic number, because the mean of its divisors is an integer number (25330035331).

Almost surely, 2^50660070661 is an apocalyptic number.

It is an amenable number.

50660070661 is a deficient number, since it is larger than the sum of its proper divisors (1).

50660070661 is an equidigital number, since it uses as much as digits as its factorization.

50660070661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 50660070661 in words is "fifty billion, six hundred sixty million, seventy thousand, six hundred sixty-one".