68253551366 has 64 divisors (see below), whose sum is σ = 137600709120. Its totient is φ = 24521909760.

The previous prime is 68253551341. The next prime is 68253551383. The reversal of 68253551366 is 66315535286.

68253551366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2023310 + ... + 2056766.

It is an arithmetic number, because the mean of its divisors is an integer number (2150011080).

Almost surely, 2^68253551366 is an apocalyptic number.

68253551366 is an abundant number, since it is smaller than the sum of its proper divisors (69347157754).

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

68253551366 is a wasteful number, since it uses less digits than its factorization.

68253551366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34509.

The product of its digits is 3888000, while the sum is 50.

The spelling of 68253551366 in words is "sixty-eight billion, two hundred fifty-three million, five hundred fifty-one thousand, three hundred sixty-six".