1664998335002 has 16 divisors (see below), whose sum is σ = 2513763981792. Its totient is φ = 827093718000.

The previous prime is 1664998334999. The next prime is 1664998335031. The reversal of 1664998335002 is 2005338994661.

It is a happy number.

It is a super-3 number, since 3×1664998335002³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3977948 + ... + 4376535.

It is an arithmetic number, because the mean of its divisors is an integer number (157110248862).

Almost surely, 2^{1664998335002} is an apocalyptic number.

1664998335002 is a deficient number, since it is larger than the sum of its proper divisors (848765646790).

1664998335002 is a wasteful number, since it uses less digits than its factorization.

1664998335002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355133.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 1664998335002 in words is "one trillion, six hundred sixty-four billion, nine hundred ninety-eight million, three hundred thirty-five thousand, two".