65203966 has 4 divisors (see below), whose sum is σ = 97805952. Its totient is φ = 32601982.

The previous prime is 65203951. The next prime is 65203967. The reversal of 65203966 is 66930256.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65203967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16300990 + ... + 16300993.

It is an arithmetic number, because the mean of its divisors is an integer number (24451488).

Almost surely, 2^65203966 is an apocalyptic number.

65203966 is a deficient number, since it is larger than the sum of its proper divisors (32601986).

65203966 is a wasteful number, since it uses less digits than its factorization.

65203966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32601985.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 65203966 is about 8074.8972748884. The cubic root of 65203966 is about 402.4926963941.

The spelling of 65203966 in words is "sixty-five million, two hundred three thousand, nine hundred sixty-six".