214168956081 has 16 divisors (see below), whose sum is σ = 287471952768. Its totient is φ = 141824476800.

The previous prime is 214168955971. The next prime is 214168956083. The reversal of 214168956081 is 180659861412.

It is a happy number.

It is not a de Polignac number, because 214168956081 - 2¹⁰ = 214168955057 is a prime.

It is a super-2 number, since 2×214168956081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214168956083) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 235236 + ... + 695466.

It is an arithmetic number, because the mean of its divisors is an integer number (17966997048).

Almost surely, 2^214168956081 is an apocalyptic number.

It is an amenable number.

214168956081 is a deficient number, since it is larger than the sum of its proper divisors (73302996687).

214168956081 is a wasteful number, since it uses less digits than its factorization.

214168956081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461272.

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 214168956081 in words is "two hundred fourteen billion, one hundred sixty-eight million, nine hundred fifty-six thousand, eighty-one".