68016390297253 has 8 divisors (see below), whose sum is σ = 70578061479936. Its totient is φ = 65477693744400.

The previous prime is 68016390297223. The next prime is 68016390297347. The reversal of 68016390297253 is 35279209361086.

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

It is a cyclic number.

It is not a de Polignac number, because 68016390297253 - 2⁵ = 68016390297221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68016390297191 and 68016390297200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68016390297223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5743651426 + ... + 5743663267.

It is an arithmetic number, because the mean of its divisors is an integer number (8822257684992).

Almost surely, 2^{68016390297253} is an apocalyptic number.

It is an amenable number.

68016390297253 is a deficient number, since it is larger than the sum of its proper divisors (2561671182683).

68016390297253 is a wasteful number, since it uses less digits than its factorization.

68016390297253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11487314915.

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 68016390297253 in words is "sixty-eight trillion, sixteen billion, three hundred ninety million, two hundred ninety-seven thousand, two hundred fifty-three".