166466062611665 has 16 divisors (see below), whose sum is σ = 199935210957696. Its totient is φ = 133055570208000.

The previous prime is 166466062611631. The next prime is 166466062611677. The reversal of 166466062611665 is 566116260664661.

It is not a de Polignac number, because 166466062611665 - 2¹⁰ = 166466062610641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166466062611598 and 166466062611607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126308150 + ... + 127619280.

It is an arithmetic number, because the mean of its divisors is an integer number (12495950684856).

Almost surely, 2^{166466062611665} is an apocalyptic number.

It is an amenable number.

166466062611665 is a deficient number, since it is larger than the sum of its proper divisors (33469148346031).

166466062611665 is a wasteful number, since it uses less digits than its factorization.

166466062611665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333480.

The product of its (nonzero) digits is 67184640, while the sum is 62.

The spelling of 166466062611665 in words is "one hundred sixty-six trillion, four hundred sixty-six billion, sixty-two million, six hundred eleven thousand, six hundred sixty-five".