68165377340 has 96 divisors (see below), whose sum is σ = 150208880640. Its totient is φ = 25953696000.

The previous prime is 68165377333. The next prime is 68165377349. The reversal of 68165377340 is 4377356186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68165377349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9639326 + ... + 9646394.

It is an arithmetic number, because the mean of its divisors is an integer number (1564675840).

Almost surely, 2^68165377340 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 68165377340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75104440320).

68165377340 is an abundant number, since it is smaller than the sum of its proper divisors (82043503300).

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

68165377340 is a wasteful number, since it uses less digits than its factorization.

68165377340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363 (or 7361 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 68165377340 in words is "sixty-eight billion, one hundred sixty-five million, three hundred seventy-seven thousand, three hundred forty".