166266654136066 has 16 divisors (see below), whose sum is σ = 273645381379968. Its totient is φ = 75138897821200.

The previous prime is 166266654136049. The next prime is 166266654136087. The reversal of 166266654136066 is 660631456662661.

It is a junction number, because it is equal to n+sod(n) for n = 166266654135989 and 166266654136007.

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, 21842699050 + ... + 21842706661.

It is an arithmetic number, because the mean of its divisors is an integer number (17102836336248).

Almost surely, 2^{166266654136066} is an apocalyptic number.

166266654136066 is a deficient number, since it is larger than the sum of its proper divisors (107378727243902).

166266654136066 is a wasteful number, since it uses less digits than its factorization.

166266654136066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43685405897.

The product of its (nonzero) digits is 201553920, while the sum is 64.

The spelling of 166266654136066 in words is "one hundred sixty-six trillion, two hundred sixty-six billion, six hundred fifty-four million, one hundred thirty-six thousand, sixty-six".