166420523620006 has 8 divisors (see below), whose sum is σ = 253723093388064. Its totient is φ = 81846159157320.

The previous prime is 166420523619997. The next prime is 166420523620009. The reversal of 166420523620006 is 600026325024661.

166420523620006 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166420523620009) 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, 682051326190 + ... + 682051326433.

It is an arithmetic number, because the mean of its divisors is an integer number (31715386673508).

Almost surely, 2^{166420523620006} is an apocalyptic number.

166420523620006 is a deficient number, since it is larger than the sum of its proper divisors (87302569768058).

166420523620006 is a wasteful number, since it uses less digits than its factorization.

166420523620006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364102652686.

The product of its (nonzero) digits is 622080, while the sum is 43.

Adding to 166420523620006 its reverse (600026325024661), we get a palindrome (766446848644667).

The spelling of 166420523620006 in words is "one hundred sixty-six trillion, four hundred twenty billion, five hundred twenty-three million, six hundred twenty thousand, six".