66001500166 has 32 divisors (see below), whose sum is σ = 120000319488. Its totient is φ = 26612958240.

The previous prime is 66001500157. The next prime is 66001500203. The reversal of 66001500166 is 66100510066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660470 + ... + 1699753.

It is an arithmetic number, because the mean of its divisors is an integer number (3750009984).

Almost surely, 2^66001500166 is an apocalyptic number.

66001500166 is a deficient number, since it is larger than the sum of its proper divisors (53998819322).

66001500166 is a wasteful number, since it uses less digits than its factorization.

66001500166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360316.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 66001500166 in words is "sixty-six billion, one million, five hundred thousand, one hundred sixty-six".