166557000339071 has 2 divisors, whose sum is σ = 166557000339072. Its totient is φ = 166557000339070.

The previous prime is 166557000339061. The next prime is 166557000339193. The reversal of 166557000339071 is 170933000755661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166557000339071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166557000339031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83278500169535 + 83278500169536.

It is an arithmetic number, because the mean of its divisors is an integer number (83278500169536).

Almost surely, 2^{166557000339071} is an apocalyptic number.

166557000339071 is a deficient number, since it is larger than the sum of its proper divisors (1).

166557000339071 is an equidigital number, since it uses as much as digits as its factorization.

166557000339071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3572100, while the sum is 53.

The spelling of 166557000339071 in words is "one hundred sixty-six trillion, five hundred fifty-seven billion, three hundred thirty-nine thousand, seventy-one".