216422514430406 has 4 divisors (see below), whose sum is σ = 324633771645612. Its totient is φ = 108211257215202.

The previous prime is 216422514430403. The next prime is 216422514430411. The reversal of 216422514430406 is 604034415224612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216422514430403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54105628607600 + ... + 54105628607603.

It is an arithmetic number, because the mean of its divisors is an integer number (81158442911403).

Almost surely, 2^{216422514430406} is an apocalyptic number.

216422514430406 is a deficient number, since it is larger than the sum of its proper divisors (108211257215206).

216422514430406 is a wasteful number, since it uses less digits than its factorization.

216422514430406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108211257215205.

The product of its (nonzero) digits is 1105920, while the sum is 44.

The spelling of 216422514430406 in words is "two hundred sixteen trillion, four hundred twenty-two billion, five hundred fourteen million, four hundred thirty thousand, four hundred six".