67855116864 has 112 divisors (see below), whose sum is σ = 186132337920. Its totient is φ = 21790433280.

The previous prime is 67855116859. The next prime is 67855116883. The reversal of 67855116864 is 46861155876.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2564824 + ... + 2591144.

Almost surely, 2^67855116864 is an apocalyptic number.

67855116864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67855116864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93066168960).

67855116864 is an abundant number, since it is smaller than the sum of its proper divisors (118277221056).

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

67855116864 is a wasteful number, since it uses less digits than its factorization.

67855116864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26828 (or 26818 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 57.

The spelling of 67855116864 in words is "sixty-seven billion, eight hundred fifty-five million, one hundred sixteen thousand, eight hundred sixty-four".