66952233 has 12 divisors (see below), whose sum is σ = 96803460. Its totient is φ = 44591136.

The previous prime is 66952201. The next prime is 66952267. The reversal of 66952233 is 33225966.

It can be written as a sum of positive squares in 2 ways, for example, as 38787984 + 28164249 = 6228^2 + 5307^2 .

It is not a de Polignac number, because 66952233 - 2⁵ = 66952201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66952133) 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, 8035 + ... + 14087.

It is an arithmetic number, because the mean of its divisors is an integer number (8066955).

Almost surely, 2^66952233 is an apocalyptic number.

It is an amenable number.

66952233 is a deficient number, since it is larger than the sum of its proper divisors (29851227).

66952233 is a wasteful number, since it uses less digits than its factorization.

66952233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7288 (or 7285 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 66952233 is about 8182.4344177024. The cubic root of 66952233 is about 406.0582657203.

The spelling of 66952233 in words is "sixty-six million, nine hundred fifty-two thousand, two hundred thirty-three".