66834936 has 64 divisors (see below), whose sum is σ = 212179200. Its totient is φ = 19095264.

The previous prime is 66834923. The next prime is 66834947. The reversal of 66834936 is 63943866.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 66834891 and 66834900.

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, 20590 + ... + 23613.

It is an arithmetic number, because the mean of its divisors is an integer number (3315300).

Almost surely, 2^66834936 is an apocalyptic number.

It is an amenable number.

66834936 is an abundant number, since it is smaller than the sum of its proper divisors (145344264).

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

66834936 is a wasteful number, since it uses less digits than its factorization.

66834936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44225 (or 44215 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 66834936 is about 8175.2636654728. The cubic root of 66834936 is about 405.8209957735.

The spelling of 66834936 in words is "sixty-six million, eight hundred thirty-four thousand, nine hundred thirty-six".