65663163500 has 48 divisors (see below), whose sum is σ = 156445484832. Its totient is φ = 23877512000.

The previous prime is 65663163451. The next prime is 65663163521. The reversal of 65663163500 is 536136656.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 5963879 + ... + 5974878.

It is an arithmetic number, because the mean of its divisors is an integer number (3259280934).

Almost surely, 2^65663163500 is an apocalyptic number.

It is an amenable number.

65663163500 is an abundant number, since it is smaller than the sum of its proper divisors (90782321332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65663163500 is a wasteful number, since it uses less digits than its factorization.

65663163500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938787 (or 11938775 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 41.

The spelling of 65663163500 in words is "sixty-five billion, six hundred sixty-three million, one hundred sixty-three thousand, five hundred".