66114331 has 4 divisors (see below), whose sum is σ = 66391200. Its totient is φ = 65837464.

The previous prime is 66114317. The next prime is 66114341. The reversal of 66114331 is 13341166.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13341166 = 2 ⋅6670583.

It is a cyclic number.

It is not a de Polignac number, because 66114331 - 2⁵ = 66114299 is a prime.

It is a super-2 number, since 2×66114331² = 8742209527155122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66114296 and 66114305.

It is not an unprimeable number, because it can be changed into a prime (66114311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138076 + ... + 138553.

It is an arithmetic number, because the mean of its divisors is an integer number (16597800).

Almost surely, 2^66114331 is an apocalyptic number.

66114331 is a deficient number, since it is larger than the sum of its proper divisors (276869).

66114331 is a wasteful number, since it uses less digits than its factorization.

66114331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276868.

The product of its digits is 1296, while the sum is 25.

The square root of 66114331 is about 8131.0719465517. The cubic root of 66114331 is about 404.3572204836.

Adding to 66114331 its reverse (13341166), we get a palindrome (79455497).

The spelling of 66114331 in words is "sixty-six million, one hundred fourteen thousand, three hundred thirty-one".