166235126646 has 16 divisors (see below), whose sum is σ = 346925481984. Its totient is φ = 53002504104.

The previous prime is 166235126641. The next prime is 166235126677. The reversal of 166235126646 is 646621532661.

It is a junction number, because it is equal to n+sod(n) for n = 166235126595 and 166235126604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166235126641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602301046 + ... + 602301321.

It is an arithmetic number, because the mean of its divisors is an integer number (21682842624).

Almost surely, 2^166235126646 is an apocalyptic number.

166235126646 is an abundant number, since it is smaller than the sum of its proper divisors (180690355338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166235126646 is a wasteful number, since it uses less digits than its factorization.

166235126646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204602395.

The product of its digits is 1866240, while the sum is 48.

The spelling of 166235126646 in words is "one hundred sixty-six billion, two hundred thirty-five million, one hundred twenty-six thousand, six hundred forty-six".