664124263403 has 8 divisors (see below), whose sum is σ = 667016499600. Its totient is φ = 661237739008.

The previous prime is 664124263399. The next prime is 664124263417. The reversal of 664124263403 is 304362421466.

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

It is a cyclic number.

It is not a de Polignac number, because 664124263403 - 2² = 664124263399 is a prime.

It is a super-2 number, since 2×664124263403² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664124263463) 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 7 ways as a sum of consecutive naturals, for example, 1194818 + ... + 1660071.

It is an arithmetic number, because the mean of its divisors is an integer number (83377062450).

Almost surely, 2^664124263403 is an apocalyptic number.

664124263403 is a deficient number, since it is larger than the sum of its proper divisors (2892236197).

664124263403 is a wasteful number, since it uses less digits than its factorization.

664124263403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855901.

The product of its (nonzero) digits is 497664, while the sum is 41.

Adding to 664124263403 its reverse (304362421466), we get a palindrome (968486684869).

The spelling of 664124263403 in words is "six hundred sixty-four billion, one hundred twenty-four million, two hundred sixty-three thousand, four hundred three".