166420416112126 has 64 divisors (see below), whose sum is σ = 285087205601280. Its totient is φ = 72169600608000.

The previous prime is 166420416112109. The next prime is 166420416112151. The reversal of 166420416112126 is 621211614024661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 783797610 + ... + 784009906.

It is an arithmetic number, because the mean of its divisors is an integer number (4454487587520).

Almost surely, 2^{166420416112126} is an apocalyptic number.

166420416112126 is a deficient number, since it is larger than the sum of its proper divisors (118666789489154).

166420416112126 is a wasteful number, since it uses less digits than its factorization.

166420416112126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228601.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 166420416112126 in words is "one hundred sixty-six trillion, four hundred twenty billion, four hundred sixteen million, one hundred twelve thousand, one hundred twenty-six".