66411356 has 24 divisors (see below), whose sum is σ = 126992880. Its totient is φ = 30137600.

The previous prime is 66411353. The next prime is 66411377. The reversal of 66411356 is 65311466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66411353) 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 in 7 ways as a sum of consecutive naturals, for example, 48116 + ... + 49476.

It is an arithmetic number, because the mean of its divisors is an integer number (5291370).

Almost surely, 2^66411356 is an apocalyptic number.

It is an amenable number.

66411356 is a deficient number, since it is larger than the sum of its proper divisors (60581524).

66411356 is a wasteful number, since it uses less digits than its factorization.

66411356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485 (or 2483 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 66411356 is about 8149.3162903399. The cubic root of 66411356 is about 404.9618538476.

It can be divided in two parts, 6641 and 1356, that added together give a palindrome (7997).

The spelling of 66411356 in words is "sixty-six million, four hundred eleven thousand, three hundred fifty-six".