2506426660097 has 2 divisors, whose sum is σ = 2506426660098. Its totient is φ = 2506426660096.

The previous prime is 2506426660091. The next prime is 2506426660189. The reversal of 2506426660097 is 7900666246052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1666373756161 + 840052903936 = 1290881^2 + 916544^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506426660097 - 2¹⁰ = 2506426659073 is a prime.

It is not a weakly prime, because it can be changed into another prime (2506426660091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253213330048 + 1253213330049.

It is an arithmetic number, because the mean of its divisors is an integer number (1253213330049).

Almost surely, 2^{2506426660097} is an apocalyptic number.

It is an amenable number.

2506426660097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506426660097 is an equidigital number, since it uses as much as digits as its factorization.

2506426660097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 2506426660097 in words is "two trillion, five hundred six billion, four hundred twenty-six million, six hundred sixty thousand, ninety-seven".