166502256056035 has 4 divisors (see below), whose sum is σ = 199802707267248. Its totient is φ = 133201804844824.

The previous prime is 166502256056011. The next prime is 166502256056039. The reversal of 166502256056035 is 530650652205661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166502256056035 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166502256056039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16650225605599 + ... + 16650225605608.

It is an arithmetic number, because the mean of its divisors is an integer number (49950676816812).

Almost surely, 2^{166502256056035} is an apocalyptic number.

166502256056035 is a deficient number, since it is larger than the sum of its proper divisors (33300451211213).

166502256056035 is an equidigital number, since it uses as much as digits as its factorization.

166502256056035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33300451211212.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 166502256056035 in words is "one hundred sixty-six trillion, five hundred two billion, two hundred fifty-six million, fifty-six thousand, thirty-five".