166461402424366 has 16 divisors (see below), whose sum is σ = 285362644019040. Its totient is φ = 71340541073280.

The previous prime is 166461402424333. The next prime is 166461402424403. The reversal of 166461402424366 is 663424204164661.

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 7 ways as a sum of consecutive naturals, for example, 15017626 + ... + 23631586.

It is an arithmetic number, because the mean of its divisors is an integer number (17835165251190).

Almost surely, 2^{166461402424366} is an apocalyptic number.

166461402424366 is a deficient number, since it is larger than the sum of its proper divisors (118901241594674).

166461402424366 is a wasteful number, since it uses less digits than its factorization.

166461402424366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994299.

The product of its (nonzero) digits is 23887872, while the sum is 55.

The spelling of 166461402424366 in words is "one hundred sixty-six trillion, four hundred sixty-one billion, four hundred two million, four hundred twenty-four thousand, three hundred sixty-six".