66061237 has 8 divisors (see below), whose sum is σ = 72211392. Its totient is φ = 59935200.

The previous prime is 66061223. The next prime is 66061253. The reversal of 66061237 is 73216066.

66061237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66061237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66061199 and 66061208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66061207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 11494.

It is an arithmetic number, because the mean of its divisors is an integer number (9026424).

Almost surely, 2^66061237 is an apocalyptic number.

It is an amenable number.

66061237 is a deficient number, since it is larger than the sum of its proper divisors (6150155).

66061237 is a wasteful number, since it uses less digits than its factorization.

66061237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 66061237 is about 8127.8064076355. The cubic root of 66061237 is about 404.2489499999.

The spelling of 66061237 in words is "sixty-six million, sixty-one thousand, two hundred thirty-seven".