64998666010 has 32 divisors (see below), whose sum is σ = 118406473920. Its totient is φ = 25686849408.

The previous prime is 64998665987. The next prime is 64998666017. The reversal of 64998666010 is 1066689946.

It is not an unprimeable number, because it can be changed into a prime (64998666017) 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 in 15 ways as a sum of consecutive naturals, for example, 1113409 + ... + 1170331.

It is an arithmetic number, because the mean of its divisors is an integer number (3700202310).

Almost surely, 2^64998666010 is an apocalyptic number.

64998666010 is a deficient number, since it is larger than the sum of its proper divisors (53407807910).

64998666010 is a wasteful number, since it uses less digits than its factorization.

64998666010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58302.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 64998666010 in words is "sixty-four billion, nine hundred ninety-eight million, six hundred sixty-six thousand, ten".