66666092 has 6 divisors (see below), whose sum is σ = 116665668. Its totient is φ = 33333044.

The previous prime is 66666071. The next prime is 66666097. The reversal of 66666092 is 29066666.

It is not an unprimeable number, because it can be changed into a prime (66666097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8333258 + ... + 8333265.

It is an arithmetic number, because the mean of its divisors is an integer number (19444278).

Almost surely, 2^66666092 is an apocalyptic number.

It is an amenable number.

66666092 is a deficient number, since it is larger than the sum of its proper divisors (49999576).

66666092 is a wasteful number, since it uses less digits than its factorization.

66666092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666527 (or 16666525 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 66666092 is about 8164.9306181988. The cubic root of 66666092 is about 405.4789679553.

The spelling of 66666092 in words is "sixty-six million, six hundred sixty-six thousand, ninety-two".