166647177416075 has 12 divisors (see below), whose sum is σ = 208573738317000. Its totient is φ = 132071781725760.

The previous prime is 166647177416011. The next prime is 166647177416081. The reversal of 166647177416075 is 570614771746661.

It is not a de Polignac number, because 166647177416075 - 2⁶ = 166647177416011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166647177415996 and 166647177416014.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31149002450 + ... + 31149007799.

It is an arithmetic number, because the mean of its divisors is an integer number (17381144859750).

Almost surely, 2^{166647177416075} is an apocalyptic number.

166647177416075 is a deficient number, since it is larger than the sum of its proper divisors (41926560900925).

166647177416075 is a wasteful number, since it uses less digits than its factorization.

166647177416075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62298010366 (or 62298010361 counting only the distinct ones).

The product of its (nonzero) digits is 248935680, while the sum is 68.

The spelling of 166647177416075 in words is "one hundred sixty-six trillion, six hundred forty-seven billion, one hundred seventy-seven million, four hundred sixteen thousand, seventy-five".