6378557416320 has 64 divisors (see below), whose sum is σ = 20331651770640. Its totient is φ = 1700948643840.

The previous prime is 6378557416247. The next prime is 6378557416333. The reversal of 6378557416320 is 236147558736.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661080741 + ... + 1661084580.

Almost surely, 2^{6378557416320} is an apocalyptic number.

6378557416320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6378557416320 is an abundant number, since it is smaller than the sum of its proper divisors (13953094354320).

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

6378557416320 is a wasteful number, since it uses less digits than its factorization.

6378557416320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322165343 (or 3322165331 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 6378557416320 in words is "six trillion, three hundred seventy-eight billion, five hundred fifty-seven million, four hundred sixteen thousand, three hundred twenty".