68162903040 has 352 divisors, whose sum is σ = 231296196096. Its totient is φ = 17096048640.

The previous prime is 68162903033. The next prime is 68162903087. The reversal of 68162903040 is 4030926186.

It is a self number, because there is not a number n which added to its sum of digits gives 68162903040.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 21548499 + ... + 21551661.

Almost surely, 2^68162903040 is an apocalyptic number.

68162903040 is a gapful number since it is divisible by the number (60) 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 68162903040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115648098048).

68162903040 is an abundant number, since it is smaller than the sum of its proper divisors (163133293056).

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

68162903040 is a wasteful number, since it uses less digits than its factorization.

68162903040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275 (or 3257 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 68162903040 in words is "sixty-eight billion, one hundred sixty-two million, nine hundred three thousand, forty".