503211211640 has 64 divisors (see below), whose sum is σ = 1149122388960. Its totient is φ = 198301340160.

The previous prime is 503211211603. The next prime is 503211211673. The reversal of 503211211640 is 46112112305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449894 + ... + 1099466.

Almost surely, 2^503211211640 is an apocalyptic number.

It is an amenable number.

503211211640 is an abundant number, since it is smaller than the sum of its proper divisors (645911177320).

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

503211211640 is a wasteful number, since it uses less digits than its factorization.

503211211640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649872 (or 649868 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 503211211640 its reverse (46112112305), we get a palindrome (549323323945).

The spelling of 503211211640 in words is "five hundred three billion, two hundred eleven million, two hundred eleven thousand, six hundred forty".