216414412572031 has 4 divisors (see below), whose sum is σ = 216423228924952. Its totient is φ = 216405596219112.

The previous prime is 216414412571993. The next prime is 216414412572073. The reversal of 216414412572031 is 130275214414612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216414412572031 is a prime.

It is a super-2 number, since 2×216414412572031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216414412582031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4408139640 + ... + 4408188733.

It is an arithmetic number, because the mean of its divisors is an integer number (54105807231238).

Almost surely, 2^{216414412572031} is an apocalyptic number.

216414412572031 is a deficient number, since it is larger than the sum of its proper divisors (8816352921).

216414412572031 is an equidigital number, since it uses as much as digits as its factorization.

216414412572031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8816352920.

The product of its (nonzero) digits is 322560, while the sum is 43.

Adding to 216414412572031 its reverse (130275214414612), we get a palindrome (346689626986643).

The spelling of 216414412572031 in words is "two hundred sixteen trillion, four hundred fourteen billion, four hundred twelve million, five hundred seventy-two thousand, thirty-one".