648583166418 has 24 divisors (see below), whose sum is σ = 1425810929424. Its totient is φ = 196540353240.

The previous prime is 648583166383. The next prime is 648583166423. The reversal of 648583166418 is 814661385846.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446681896 + ... + 446683347.

It is an arithmetic number, because the mean of its divisors is an integer number (59408788726).

Almost surely, 2^648583166418 is an apocalyptic number.

648583166418 is an abundant number, since it is smaller than the sum of its proper divisors (777227763006).

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

648583166418 is a wasteful number, since it uses less digits than its factorization.

648583166418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893365270 (or 893365259 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 60.

The spelling of 648583166418 in words is "six hundred forty-eight billion, five hundred eighty-three million, one hundred sixty-six thousand, four hundred eighteen".