66100233 has 16 divisors (see below), whose sum is σ = 93674880. Its totient is φ = 41316096.

The previous prime is 66100207. The next prime is 66100261. The reversal of 66100233 is 33200166.

It is not a de Polignac number, because 66100233 - 2⁸ = 66099977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66100273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11788 + ... + 16466.

It is an arithmetic number, because the mean of its divisors is an integer number (5854680).

Almost surely, 2^66100233 is an apocalyptic number.

It is an amenable number.

66100233 is a deficient number, since it is larger than the sum of its proper divisors (27574647).

66100233 is a wasteful number, since it uses less digits than its factorization.

66100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 66100233 is about 8130.2049789658. The cubic root of 66100233 is about 404.3284771777.

Adding to 66100233 its reverse (33200166), we get a palindrome (99300399).

The spelling of 66100233 in words is "sixty-six million, one hundred thousand, two hundred thirty-three".