68455166053744 has 80 divisors (see below), whose sum is σ = 138674795673600. Its totient is φ = 32699308919040.

The previous prime is 68455166053717. The next prime is 68455166053751. The reversal of 68455166053744 is 44735066155486.

It is a super-2 number, since 2×68455166053744² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9205029 + ... + 14887675.

It is an arithmetic number, because the mean of its divisors is an integer number (1733434945920).

Almost surely, 2^{68455166053744} 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 68455166053744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69337397836800).

68455166053744 is an abundant number, since it is smaller than the sum of its proper divisors (70219629619856).

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

68455166053744 is a wasteful number, since it uses less digits than its factorization.

68455166053744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682998 (or 5682992 counting only the distinct ones).

The product of its (nonzero) digits is 290304000, while the sum is 64.

The spelling of 68455166053744 in words is "sixty-eight trillion, four hundred fifty-five billion, one hundred sixty-six million, fifty-three thousand, seven hundred forty-four".