66026193 has 16 divisors (see below), whose sum is σ = 89521536. Its totient is φ = 43280640.

The previous prime is 66026189. The next prime is 66026201. The reversal of 66026193 is 39162066.

It is a happy number.

It is not a de Polignac number, because 66026193 - 2² = 66026189 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66026143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47833 + ... + 49193.

It is an arithmetic number, because the mean of its divisors is an integer number (5595096).

Almost surely, 2^66026193 is an apocalyptic number.

It is an amenable number.

66026193 is a deficient number, since it is larger than the sum of its proper divisors (23495343).

66026193 is a wasteful number, since it uses less digits than its factorization.

66026193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 66026193 is about 8125.6503124365. The cubic root of 66026193 is about 404.1774556986.

The spelling of 66026193 in words is "sixty-six million, twenty-six thousand, one hundred ninety-three".