6685102466856 has 48 divisors (see below), whose sum is σ = 19751439108960. Its totient is φ = 2025788626080.

The previous prime is 6685102466831. The next prime is 6685102466897. The reversal of 6685102466856 is 6586642015866.

It is a happy number.

6685102466856 is a `hidden beast` number, since 6 + 6 + 8 + 510 + 2 + 4 + 6 + 68 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6685102466793 and 6685102466802.

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, 4220392180 + ... + 4220393763.

It is an arithmetic number, because the mean of its divisors is an integer number (411488314770).

Almost surely, 2^{6685102466856} is an apocalyptic number.

6685102466856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6685102466856 is an abundant number, since it is smaller than the sum of its proper divisors (13066336642104).

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

6685102466856 is a wasteful number, since it uses less digits than its factorization.

6685102466856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8440785966 (or 8440785959 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 63.

The spelling of 6685102466856 in words is "six trillion, six hundred eighty-five billion, one hundred two million, four hundred sixty-six thousand, eight hundred fifty-six".