66441123 has 12 divisors (see below), whose sum is σ = 109680688. Its totient is φ = 37966320.

The previous prime is 66441113. The next prime is 66441143. The reversal of 66441123 is 32114466.

66441123 is a `hidden beast` number, since 6 + 644 + 1 + 12 + 3 = 666.

It is not a de Polignac number, because 66441123 - 2⁹ = 66440611 is a prime.

It is a super-2 number, since 2×66441123² = 8828845651002258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66441103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527248 + ... + 527373.

Almost surely, 2^66441123 is an apocalyptic number.

66441123 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

66441123 is a deficient number, since it is larger than the sum of its proper divisors (43239565).

66441123 is a wasteful number, since it uses less digits than its factorization.

66441123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054634 (or 1054631 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 66441123 is about 8151.1424352664. The cubic root of 66441123 is about 405.0223490182.

Adding to 66441123 its reverse (32114466), we get a palindrome (98555589).

It can be divided in two parts, 66441 and 123, that added together give a square (66564 = 258²).

The spelling of 66441123 in words is "sixty-six million, four hundred forty-one thousand, one hundred twenty-three".