1526664126541 has 2 divisors, whose sum is σ = 1526664126542. Its totient is φ = 1526664126540.

The previous prime is 1526664126539. The next prime is 1526664126553. The reversal of 1526664126541 is 1456214666251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1369241661316 + 157422465225 = 1170146^2 + 396765^2 .

It is an emirp because it is prime and its reverse (1456214666251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1526664126541 - 2¹ = 1526664126539 is a prime.

Together with 1526664126539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1526664126041) 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, 763332063270 + 763332063271.

It is an arithmetic number, because the mean of its divisors is an integer number (763332063271).

Almost surely, 2^{1526664126541} is an apocalyptic number.

It is an amenable number.

1526664126541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1526664126541 is an equidigital number, since it uses as much as digits as its factorization.

1526664126541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 49.

The spelling of 1526664126541 in words is "one trillion, five hundred twenty-six billion, six hundred sixty-four million, one hundred twenty-six thousand, five hundred forty-one".