2661350452633 has 2 divisors, whose sum is σ = 2661350452634. Its totient is φ = 2661350452632.

The previous prime is 2661350452577. The next prime is 2661350452639. The reversal of 2661350452633 is 3362540531662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1724039902729 + 937310549904 = 1313027^2 + 968148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2661350452633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2661350452639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330675226316 + 1330675226317.

It is an arithmetic number, because the mean of its divisors is an integer number (1330675226317).

Almost surely, 2^{2661350452633} is an apocalyptic number.

It is an amenable number.

2661350452633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661350452633 is an equidigital number, since it uses as much as digits as its factorization.

2661350452633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 2661350452633 in words is "two trillion, six hundred sixty-one billion, three hundred fifty million, four hundred fifty-two thousand, six hundred thirty-three".