30868666155 has 12 divisors (see below), whose sum is σ = 53505688080. Its totient is φ = 16463288592.

The previous prime is 30868666133. The next prime is 30868666207. The reversal of 30868666155 is 55166686803.

It is not a de Polignac number, because 30868666155 - 2⁸ = 30868665899 is a prime.

It is a super-5 number, since 5×30868666155⁵ (a number of 54 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342985135 + ... + 342985224.

It is an arithmetic number, because the mean of its divisors is an integer number (4458807340).

Almost surely, 2^30868666155 is an apocalyptic number.

30868666155 is a deficient number, since it is larger than the sum of its proper divisors (22637021925).

30868666155 is a wasteful number, since it uses less digits than its factorization.

30868666155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685970370 (or 685970367 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 30868666155 in words is "thirty billion, eight hundred sixty-eight million, six hundred sixty-six thousand, one hundred fifty-five".