1664411232003 has 16 divisors (see below), whose sum is σ = 2530507575456. Its totient is φ = 964002885120.

The previous prime is 1664411231981. The next prime is 1664411232007. The reversal of 1664411232003 is 3002321144661.

It is a happy number.

It is not a de Polignac number, because 1664411232003 - 2⁵ = 1664411231971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1664411232007) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1255211428 + ... + 1255212753.

It is an arithmetic number, because the mean of its divisors is an integer number (158156723466).

Almost surely, 2^{1664411232003} is an apocalyptic number.

1664411232003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1664411232003 is a deficient number, since it is larger than the sum of its proper divisors (866096343453).

1664411232003 is a wasteful number, since it uses less digits than its factorization.

1664411232003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510424214.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 1664411232003 its reverse (3002321144661), we get a palindrome (4666732376664).

The spelling of 1664411232003 in words is "one trillion, six hundred sixty-four billion, four hundred eleven million, two hundred thirty-two thousand, three".