66441436 has 48 divisors (see below), whose sum is σ = 124921440. Its totient is φ = 30867200.

The previous prime is 66441413. The next prime is 66441469. The reversal of 66441436 is 63414466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620895 + ... + 621001.

It is an arithmetic number, because the mean of its divisors is an integer number (2602530).

Almost surely, 2^66441436 is an apocalyptic number.

It is an amenable number.

66441436 is a deficient number, since it is larger than the sum of its proper divisors (58480004).

66441436 is a wasteful number, since it uses less digits than its factorization.

66441436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 292 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 66441436 is about 8151.1616350064. The cubic root of 66441436 is about 405.0229850289.

The spelling of 66441436 in words is "sixty-six million, four hundred forty-one thousand, four hundred thirty-six".