68155416 has 96 divisors (see below), whose sum is σ = 212160000. Its totient is φ = 19362240.

The previous prime is 68155393. The next prime is 68155421. The reversal of 68155416 is 61455186.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136335 + ... + 136833.

It is an arithmetic number, because the mean of its divisors is an integer number (2210000).

Almost surely, 2^68155416 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 68155416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106080000).

68155416 is an abundant number, since it is smaller than the sum of its proper divisors (144004584).

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

68155416 is a wasteful number, since it uses less digits than its factorization.

68155416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 782 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 68155416 is about 8255.6293521451. The cubic root of 68155416 is about 408.4762316836.

The spelling of 68155416 in words is "sixty-eight million, one hundred fifty-five thousand, four hundred sixteen".