66237741 has 12 divisors (see below), whose sum is σ = 97105632. Its totient is φ = 43499016.

The previous prime is 66237737. The next prime is 66237749. The reversal of 66237741 is 14773266.

It is not a de Polignac number, because 66237741 - 2² = 66237737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66237696 and 66237705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66237749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54321 + ... + 55526.

It is an arithmetic number, because the mean of its divisors is an integer number (8092136).

Almost surely, 2^66237741 is an apocalyptic number.

It is an amenable number.

66237741 is a deficient number, since it is larger than the sum of its proper divisors (30867891).

66237741 is a wasteful number, since it uses less digits than its factorization.

66237741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109920 (or 109917 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 66237741 is about 8138.6571988259. The cubic root of 66237741 is about 404.6086571837.

The spelling of 66237741 in words is "sixty-six million, two hundred thirty-seven thousand, seven hundred forty-one".