68055205547 has 16 divisors (see below), whose sum is σ = 78061164480. Its totient is φ = 58120378368.

The previous prime is 68055205489. The next prime is 68055205577. The reversal of 68055205547 is 74550255086.

68055205547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 68055205547 - 2⁸ = 68055205291 is a prime.

It is a super-2 number, since 2×68055205547² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68055205577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5356979 + ... + 5369667.

It is an arithmetic number, because the mean of its divisors is an integer number (4878822780).

Almost surely, 2^68055205547 is an apocalyptic number.

68055205547 is a deficient number, since it is larger than the sum of its proper divisors (10005958933).

68055205547 is a wasteful number, since it uses less digits than its factorization.

68055205547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15430.

The product of its (nonzero) digits is 1680000, while the sum is 47.

The spelling of 68055205547 in words is "sixty-eight billion, fifty-five million, two hundred five thousand, five hundred forty-seven".