68149598016 has 112 divisors (see below), whose sum is σ = 185164683264. Its totient is φ = 22112004096.

The previous prime is 68149597987. The next prime is 68149598021. The reversal of 68149598016 is 61089594186.

It is a super-2 number, since 2×68149598016² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1265986 + ... + 1318718.

Almost surely, 2^68149598016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68149598016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92582341632).

68149598016 is an abundant number, since it is smaller than the sum of its proper divisors (117015085248).

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

68149598016 is a wasteful number, since it uses less digits than its factorization.

68149598016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52928 (or 52918 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 68149598016 in words is "sixty-eight billion, one hundred forty-nine million, five hundred ninety-eight thousand, sixteen".