2523362526661 has 2 divisors, whose sum is σ = 2523362526662. Its totient is φ = 2523362526660.

The previous prime is 2523362526653. The next prime is 2523362526701. The reversal of 2523362526661 is 1666252633252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1670129752225 + 853232774436 = 1292335^2 + 923706^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523362526661 - 2³ = 2523362526653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2523362526631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261681263330 + 1261681263331.

It is an arithmetic number, because the mean of its divisors is an integer number (1261681263331).

Almost surely, 2^{2523362526661} is an apocalyptic number.

It is an amenable number.

2523362526661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523362526661 is an equidigital number, since it uses as much as digits as its factorization.

2523362526661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4665600, while the sum is 49.

The spelling of 2523362526661 in words is "two trillion, five hundred twenty-three billion, three hundred sixty-two million, five hundred twenty-six thousand, six hundred sixty-one".