66037696 has 28 divisors (see below), whose sum is σ = 131401312. Its totient is φ = 32928768.

The previous prime is 66037693. The next prime is 66037703. The reversal of 66037696 is 69673066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66037693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26521 + ... + 28903.

It is an arithmetic number, because the mean of its divisors is an integer number (4692904).

Almost surely, 2^66037696 is an apocalyptic number.

It is an amenable number.

66037696 is a deficient number, since it is larger than the sum of its proper divisors (65363616).

66037696 is a wasteful number, since it uses less digits than its factorization.

66037696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2818 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 66037696 is about 8126.3581018806. The cubic root of 66037696 is about 404.2009260977.

The spelling of 66037696 in words is "sixty-six million, thirty-seven thousand, six hundred ninety-six".