66232761 has 12 divisors (see below), whose sum is σ = 102728592. Its totient is φ = 37847208.

The previous prime is 66232757. The next prime is 66232819. The reversal of 66232761 is 16723266.

It is not a de Polignac number, because 66232761 - 2² = 66232757 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66232711) 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, 225135 + ... + 225428.

It is an arithmetic number, because the mean of its divisors is an integer number (8560716).

Almost surely, 2^66232761 is an apocalyptic number.

It is an amenable number.

66232761 is a deficient number, since it is larger than the sum of its proper divisors (36495831).

66232761 is a wasteful number, since it uses less digits than its factorization.

66232761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450580 (or 450573 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 66232761 is about 8138.3512457991. The cubic root of 66232761 is about 404.5985169344.

The spelling of 66232761 in words is "sixty-six million, two hundred thirty-two thousand, seven hundred sixty-one".