66310403884 has 24 divisors (see below), whose sum is σ = 119144440800. Its totient is φ = 32272821120.

The previous prime is 66310403869. The next prime is 66310403893. The reversal of 66310403884 is 48830401366.

It is a super-3 number, since 3×66310403884³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66310403884.

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 7 ways as a sum of consecutive naturals, for example, 388519 + ... + 532510.

It is an arithmetic number, because the mean of its divisors is an integer number (4964351700).

Almost surely, 2^66310403884 is an apocalyptic number.

It is an amenable number.

66310403884 is a deficient number, since it is larger than the sum of its proper divisors (52834036916).

66310403884 is a wasteful number, since it uses less digits than its factorization.

66310403884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921513 (or 921511 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 66310403884 in words is "sixty-six billion, three hundred ten million, four hundred three thousand, eight hundred eighty-four".