68331165523 has 8 divisors (see below), whose sum is σ = 70745532480. Its totient is φ = 65920673280.

The previous prime is 68331165481. The next prime is 68331165533. The reversal of 68331165523 is 32556113386.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68331165523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68331165523.

It is not an unprimeable number, because it can be changed into a prime (68331165533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932763 + ... + 1003348.

It is an arithmetic number, because the mean of its divisors is an integer number (8843191560).

Almost surely, 2^68331165523 is an apocalyptic number.

68331165523 is a deficient number, since it is larger than the sum of its proper divisors (2414366957).

68331165523 is a wasteful number, since it uses less digits than its factorization.

68331165523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937357.

The product of its digits is 388800, while the sum is 43.

The spelling of 68331165523 in words is "sixty-eight billion, three hundred thirty-one million, one hundred sixty-five thousand, five hundred twenty-three".