66237022 has 4 divisors (see below), whose sum is σ = 99355536. Its totient is φ = 33118510.

The previous prime is 66237001. The next prime is 66237037. The reversal of 66237022 is 22073266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22073266 = 2 ⋅11036633.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16559254 + ... + 16559257.

It is an arithmetic number, because the mean of its divisors is an integer number (24838884).

Almost surely, 2^66237022 is an apocalyptic number.

66237022 is a deficient number, since it is larger than the sum of its proper divisors (33118514).

66237022 is a wasteful number, since it uses less digits than its factorization.

66237022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33118513.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 66237022 is about 8138.6130268001. The cubic root of 66237022 is about 404.6071931911.

The spelling of 66237022 in words is "sixty-six million, two hundred thirty-seven thousand, twenty-two".