66242296 has 8 divisors (see below), whose sum is σ = 124204320. Its totient is φ = 33121144.

The previous prime is 66242291. The next prime is 66242327. The reversal of 66242296 is 69224266.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66242291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140136 + ... + 4140151.

It is an arithmetic number, because the mean of its divisors is an integer number (15525540).

Almost surely, 2^66242296 is an apocalyptic number.

It is an amenable number.

66242296 is a deficient number, since it is larger than the sum of its proper divisors (57962024).

66242296 is a wasteful number, since it uses less digits than its factorization.

66242296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280293 (or 8280289 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 66242296 is about 8138.9370313328. The cubic root of 66242296 is about 404.6179316052.

The spelling of 66242296 in words is "sixty-six million, two hundred forty-two thousand, two hundred ninety-six".