166303364087 has 16 divisors (see below), whose sum is σ = 194333943552. Its totient is φ = 139376436480.

The previous prime is 166303364053. The next prime is 166303364089. The reversal of 166303364087 is 780463303661.

It is a cyclic number.

It is not a de Polignac number, because 166303364087 - 2⁶ = 166303364023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166303364089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419089 + ... + 1531802.

It is an arithmetic number, because the mean of its divisors is an integer number (12145871472).

Almost surely, 2^166303364087 is an apocalyptic number.

166303364087 is a deficient number, since it is larger than the sum of its proper divisors (28030579465).

166303364087 is an equidigital number, since it uses as much as digits as its factorization.

166303364087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951078.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 166303364087 in words is "one hundred sixty-six billion, three hundred three million, three hundred sixty-four thousand, eighty-seven".