27166542827803 has 2 divisors, whose sum is σ = 27166542827804. Its totient is φ = 27166542827802.

The previous prime is 27166542827737. The next prime is 27166542827807. The reversal of 27166542827803 is 30872824566172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27166542827803 is a prime.

It is not a weakly prime, because it can be changed into another prime (27166542827807) 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, 13583271413901 + 13583271413902.

It is an arithmetic number, because the mean of its divisors is an integer number (13583271413902).

Almost surely, 2^{27166542827803} is an apocalyptic number.

27166542827803 is a deficient number, since it is larger than the sum of its proper divisors (1).

27166542827803 is an equidigital number, since it uses as much as digits as its factorization.

27166542827803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 27166542827803 in words is "twenty-seven trillion, one hundred sixty-six billion, five hundred forty-two million, eight hundred twenty-seven thousand, eight hundred three".