664435332477330 has 64 divisors (see below), whose sum is σ = 1598309836277760. Its totient is φ = 176775634639296.

The previous prime is 664435332477313. The next prime is 664435332477421. The reversal of 664435332477330 is 33774233534466.

It is a super-2 number, since 2×664435332477330² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97303081 + ... + 103907459.

It is an arithmetic number, because the mean of its divisors is an integer number (24973591191840).

Almost surely, 2^{664435332477330} is an apocalyptic number.

664435332477330 is an abundant number, since it is smaller than the sum of its proper divisors (933874503800430).

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

664435332477330 is a wasteful number, since it uses less digits than its factorization.

664435332477330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612095.

The product of its (nonzero) digits is 274337280, while the sum is 60.

The spelling of 664435332477330 in words is "six hundred sixty-four trillion, four hundred thirty-five billion, three hundred thirty-two million, four hundred seventy-seven thousand, three hundred thirty".