216436243612 has 12 divisors (see below), whose sum is σ = 378811203120. Its totient is φ = 108204471296.

The previous prime is 216436243591. The next prime is 216436243613. The reversal of 216436243612 is 216342634612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216436243613) 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, 3376912 + ... + 3440407.

It is an arithmetic number, because the mean of its divisors is an integer number (31567600260).

Almost surely, 2^216436243612 is an apocalyptic number.

It is an amenable number.

216436243612 is a deficient number, since it is larger than the sum of its proper divisors (162374959508).

216436243612 is a wasteful number, since it uses less digits than its factorization.

216436243612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825260 (or 6825258 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The spelling of 216436243612 in words is "two hundred sixteen billion, four hundred thirty-six million, two hundred forty-three thousand, six hundred twelve".