166310787050659 has 2 divisors, whose sum is σ = 166310787050660. Its totient is φ = 166310787050658.

The previous prime is 166310787050641. The next prime is 166310787050663. The reversal of 166310787050659 is 956050787013661.

166310787050659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166310787050659 - 2²¹ = 166310784953507 is a prime.

It is a super-3 number, since 3×166310787050659³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166310787050659.

It is not a weakly prime, because it can be changed into another prime (166310787050609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83155393525329 + 83155393525330.

It is an arithmetic number, because the mean of its divisors is an integer number (83155393525330).

Almost surely, 2^{166310787050659} is an apocalyptic number.

166310787050659 is a deficient number, since it is larger than the sum of its proper divisors (1).

166310787050659 is an equidigital number, since it uses as much as digits as its factorization.

166310787050659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 166310787050659 in words is "one hundred sixty-six trillion, three hundred ten billion, seven hundred eighty-seven million, fifty thousand, six hundred fifty-nine".