1664998335003 has 8 divisors (see below), whose sum is σ = 2220063101008. Its totient is φ = 1109966229504.

The previous prime is 1664998334999. The next prime is 1664998335031. The reversal of 1664998335003 is 3005338994661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1664998335003 - 2² = 1664998334999 is a prime.

It is a super-3 number, since 3×1664998335003³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1664998333003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8045926 + ... + 8250267.

It is an arithmetic number, because the mean of its divisors is an integer number (277507887626).

Almost surely, 2^{1664998335003} is an apocalyptic number.

1664998335003 is a deficient number, since it is larger than the sum of its proper divisors (555064766005).

1664998335003 is a wasteful number, since it uses less digits than its factorization.

1664998335003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16330253.

The product of its (nonzero) digits is 12597120, while the sum is 57.

The spelling of 1664998335003 in words is "one trillion, six hundred sixty-four billion, nine hundred ninety-eight million, three hundred thirty-five thousand, three".