66089936 has 20 divisors (see below), whose sum is σ = 139690464. Its totient is φ = 30040800.

The previous prime is 66089929. The next prime is 66089951. The reversal of 66089936 is 63998066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187580 + ... + 187931.

Almost surely, 2^66089936 is an apocalyptic number.

It is an amenable number.

66089936 is an abundant number, since it is smaller than the sum of its proper divisors (73600528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66089936 is a wasteful number, since it uses less digits than its factorization.

66089936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375530 (or 375524 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 66089936 is about 8129.5716984353. The cubic root of 66089936 is about 404.3074808496.

The spelling of 66089936 in words is "sixty-six million, eighty-nine thousand, nine hundred thirty-six".