66111093 has 32 divisors (see below), whose sum is σ = 101836800. Its totient is φ = 42357168.

The previous prime is 66111083. The next prime is 66111103. The reversal of 66111093 is 39011166.

It is an interprime number because it is at equal distance from previous prime (66111083) and next prime (66111103).

It is not a de Polignac number, because 66111093 - 2⁵ = 66111061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66111043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74430 + ... + 75312.

It is an arithmetic number, because the mean of its divisors is an integer number (3182400).

Almost surely, 2^66111093 is an apocalyptic number.

It is an amenable number.

66111093 is a deficient number, since it is larger than the sum of its proper divisors (35725707).

66111093 is a wasteful number, since it uses less digits than its factorization.

66111093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 66111093 is about 8130.8728313755. The cubic root of 66111093 is about 404.3506191410.

The spelling of 66111093 in words is "sixty-six million, one hundred eleven thousand, ninety-three".