166026504142153 has 4 divisors (see below), whose sum is σ = 166096351222420. Its totient is φ = 165956657061888.

The previous prime is 166026504142141. The next prime is 166026504142181. The reversal of 166026504142153 is 351241405620661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23113373523769 + 142913130618384 = 4807637^2 + 11954628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166026504142153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166026501142153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34923536568 + ... + 34923541321.

It is an arithmetic number, because the mean of its divisors is an integer number (41524087805605).

Almost surely, 2^{166026504142153} is an apocalyptic number.

It is an amenable number.

166026504142153 is a deficient number, since it is larger than the sum of its proper divisors (69847080267).

166026504142153 is an equidigital number, since it uses as much as digits as its factorization.

166026504142153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69847080266.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 166026504142153 in words is "one hundred sixty-six trillion, twenty-six billion, five hundred four million, one hundred forty-two thousand, one hundred fifty-three".