66263948 has 6 divisors (see below), whose sum is σ = 115961916. Its totient is φ = 33131972.

The previous prime is 66263947. The next prime is 66263959. The reversal of 66263948 is 84936266.

It is a junction number, because it is equal to n+sod(n) for n = 66263899 and 66263908.

It is not an unprimeable number, because it can be changed into a prime (66263947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282990 + ... + 8282997.

It is an arithmetic number, because the mean of its divisors is an integer number (19326986).

Almost surely, 2^66263948 is an apocalyptic number.

It is an amenable number.

66263948 is a deficient number, since it is larger than the sum of its proper divisors (49697968).

66263948 is a wasteful number, since it uses less digits than its factorization.

66263948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16565991 (or 16565989 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 66263948 is about 8140.2670717858. The cubic root of 66263948 is about 404.6620113631.

The spelling of 66263948 in words is "sixty-six million, two hundred sixty-three thousand, nine hundred forty-eight".