66360437 has 16 divisors (see below), whose sum is σ = 78708672. Its totient is φ = 55153920.

The previous prime is 66360403. The next prime is 66360443. The reversal of 66360437 is 73406366.

It is a cyclic number.

It is not a de Polignac number, because 66360437 - 2⁶ = 66360373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66360397 and 66360406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66360457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13133 + ... + 17469.

It is an arithmetic number, because the mean of its divisors is an integer number (4919292).

Almost surely, 2^66360437 is an apocalyptic number.

It is an amenable number.

66360437 is a deficient number, since it is larger than the sum of its proper divisors (12348235).

66360437 is a wasteful number, since it uses less digits than its factorization.

66360437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 66360437 is about 8146.1915641605. The cubic root of 66360437 is about 404.8583297612.

The spelling of 66360437 in words is "sixty-six million, three hundred sixty thousand, four hundred thirty-seven".