66611852 has 24 divisors (see below), whose sum is σ = 118628160. Its totient is φ = 32722560.

The previous prime is 66611849. The next prime is 66611873. The reversal of 66611852 is 25811666.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87152 + ... + 87912.

It is an arithmetic number, because the mean of its divisors is an integer number (4942840).

Almost surely, 2^66611852 is an apocalyptic number.

It is an amenable number.

66611852 is a deficient number, since it is larger than the sum of its proper divisors (52016308).

66611852 is a wasteful number, since it uses less digits than its factorization.

66611852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1119 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 66611852 is about 8161.6084199133. The cubic root of 66611852 is about 405.3689712745.

The spelling of 66611852 in words is "sixty-six million, six hundred eleven thousand, eight hundred fifty-two".