166343087 has 2 divisors, whose sum is σ = 166343088. Its totient is φ = 166343086.

The previous prime is 166343063. The next prime is 166343137. The reversal of 166343087 is 780343661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166343087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166343087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166343017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83171543 + 83171544.

It is an arithmetic number, because the mean of its divisors is an integer number (83171544).

Almost surely, 2^166343087 is an apocalyptic number.

166343087 is a deficient number, since it is larger than the sum of its proper divisors (1).

166343087 is an equidigital number, since it uses as much as digits as its factorization.

166343087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 166343087 is about 12897.4062121033. The cubic root of 166343087 is about 549.9648319111.

The spelling of 166343087 in words is "one hundred sixty-six million, three hundred forty-three thousand, eighty-seven".