66302301640 has 32 divisors (see below), whose sum is σ = 150318970560. Its totient is φ = 26318468800.

The previous prime is 66302301607. The next prime is 66302301649. The reversal of 66302301640 is 4610320366.

It is not an unprimeable number, because it can be changed into a prime (66302301649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6321316 + ... + 6331795.

It is an arithmetic number, because the mean of its divisors is an integer number (4697467830).

Almost surely, 2^66302301640 is an apocalyptic number.

It is an amenable number.

66302301640 is an abundant number, since it is smaller than the sum of its proper divisors (84016668920).

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

66302301640 is a wasteful number, since it uses less digits than its factorization.

66302301640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12653253 (or 12653249 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 66302301640 in words is "sixty-six billion, three hundred two million, three hundred one thousand, six hundred forty".