6685378560052 has 12 divisors (see below), whose sum is σ = 12387613214340. Its totient is φ = 3146060498816.

The previous prime is 6685378559929. The next prime is 6685378560053. The reversal of 6685378560052 is 2500658735866.

It can be written as a sum of positive squares in 2 ways, for example, as 3948987686436 + 2736390873616 = 1987206^2 + 1654204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685378560053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49157195227 + ... + 49157195362.

It is an arithmetic number, because the mean of its divisors is an integer number (1032301101195).

Almost surely, 2^{6685378560052} is an apocalyptic number.

It is an amenable number.

6685378560052 is a deficient number, since it is larger than the sum of its proper divisors (5702234654288).

6685378560052 is a wasteful number, since it uses less digits than its factorization.

6685378560052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98314390610 (or 98314390608 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 61.

The spelling of 6685378560052 in words is "six trillion, six hundred eighty-five billion, three hundred seventy-eight million, five hundred sixty thousand, fifty-two".