166655413876415 has 8 divisors (see below), whose sum is σ = 199986701414208. Its totient is φ = 133324194592800.

The previous prime is 166655413876381. The next prime is 166655413876423. The reversal of 166655413876415 is 514678314556661.

It is a happy number.

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

It is not a de Polignac number, because 166655413876415 - 2⁶ = 166655413876351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11528612 + ... + 21592121.

It is an arithmetic number, because the mean of its divisors is an integer number (24998337676776).

Almost surely, 2^{166655413876415} is an apocalyptic number.

166655413876415 is a deficient number, since it is larger than the sum of its proper divisors (33331287537793).

166655413876415 is a wasteful number, since it uses less digits than its factorization.

166655413876415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34127089.

The product of its digits is 435456000, while the sum is 68.

The spelling of 166655413876415 in words is "one hundred sixty-six trillion, six hundred fifty-five billion, four hundred thirteen million, eight hundred seventy-six thousand, four hundred fifteen".