216523325612 has 36 divisors (see below), whose sum is σ = 416925857040. Its totient is φ = 98317702560.

The previous prime is 216523325597. The next prime is 216523325639.

216523325612 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236714 + ... + 699342.

Almost surely, 2^216523325612 is an apocalyptic number.

216523325612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

216523325612 is a deficient number, since it is larger than the sum of its proper divisors (200402531428).

216523325612 is a wasteful number, since it uses less digits than its factorization.

216523325612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463622 (or 463609 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The spelling of 216523325612 in words is "two hundred sixteen billion, five hundred twenty-three million, three hundred twenty-five thousand, six hundred twelve".