66233697 has 4 divisors (see below), whose sum is σ = 88311600. Its totient is φ = 44155796.

The previous prime is 66233693. The next prime is 66233723. The reversal of 66233697 is 79633266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66233697 - 2² = 66233693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66233693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11038947 + ... + 11038952.

It is an arithmetic number, because the mean of its divisors is an integer number (22077900).

Almost surely, 2^66233697 is an apocalyptic number.

It is an amenable number.

66233697 is a deficient number, since it is larger than the sum of its proper divisors (22077903).

66233697 is a wasteful number, since it uses less digits than its factorization.

66233697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22077902.

The product of its digits is 244944, while the sum is 42.

The square root of 66233697 is about 8138.4087511012. The cubic root of 66233697 is about 404.6004228514.

The spelling of 66233697 in words is "sixty-six million, two hundred thirty-three thousand, six hundred ninety-seven".