66748037 has 16 divisors (see below), whose sum is σ = 70785792. Its totient is φ = 62861760.

The previous prime is 66747979. The next prime is 66748067. The reversal of 66748037 is 73084766.

It is a cyclic number.

It is not a de Polignac number, because 66748037 - 2⁶ = 66747973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66747985 and 66748003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66748067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227663 + ... + 227955.

It is an arithmetic number, because the mean of its divisors is an integer number (4424112).

Almost surely, 2^66748037 is an apocalyptic number.

It is an amenable number.

66748037 is a deficient number, since it is larger than the sum of its proper divisors (4037755).

66748037 is a wasteful number, since it uses less digits than its factorization.

66748037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 66748037 is about 8169.9471846518. The cubic root of 66748037 is about 405.6450362332.

The spelling of 66748037 in words is "sixty-six million, seven hundred forty-eight thousand, thirty-seven".