68006209558 has 16 divisors (see below), whose sum is σ = 119425539744. Its totient is φ = 28434651840.

The previous prime is 68006209543. The next prime is 68006209567. The reversal of 68006209558 is 85590260086.

It is a super-2 number, since 2×68006209558² (a number of 22 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 7 ways as a sum of consecutive naturals, for example, 59238285 + ... + 59239432.

It is an arithmetic number, because the mean of its divisors is an integer number (7464096234).

Almost surely, 2^68006209558 is an apocalyptic number.

68006209558 is a deficient number, since it is larger than the sum of its proper divisors (51419330186).

68006209558 is a wasteful number, since it uses less digits than its factorization.

68006209558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118477767.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 68006209558 in words is "sixty-eight billion, six million, two hundred nine thousand, five hundred fifty-eight".