68563160553400 has 96 divisors (see below), whose sum is σ = 160111037394000. Its totient is φ = 27304808652800.

The previous prime is 68563160553361. The next prime is 68563160553451. The reversal of 68563160553400 is 435506136586.

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, 40569699 + ... + 42225901.

Almost surely, 2^{68563160553400} 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 68563160553400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80055518697000).

68563160553400 is an abundant number, since it is smaller than the sum of its proper divisors (91547876840600).

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

68563160553400 is a wasteful number, since it uses less digits than its factorization.

68563160553400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657129 (or 1657120 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 52.

Adding to 68563160553400 its reverse (435506136586), we get a palindrome (68998666689986).

The spelling of 68563160553400 in words is "sixty-eight trillion, five hundred sixty-three billion, one hundred sixty million, five hundred fifty-three thousand, four hundred".