666503100360404 has 48 divisors (see below), whose sum is σ = 1179511220173440. Its totient is φ = 329513208520320.

The previous prime is 666503100360371. The next prime is 666503100360431. The reversal of 666503100360404 is 404063001305666.

666503100360404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416854769 + ... + 418450599.

It is an arithmetic number, because the mean of its divisors is an integer number (24573150420280).

Almost surely, 2^{666503100360404} is an apocalyptic number.

It is an amenable number.

666503100360404 is a deficient number, since it is larger than the sum of its proper divisors (513008119813036).

666503100360404 is a wasteful number, since it uses less digits than its factorization.

666503100360404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597920 (or 1597918 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 666503100360404 in words is "six hundred sixty-six trillion, five hundred three billion, one hundred million, three hundred sixty thousand, four hundred four".