216285276396 has 48 divisors (see below), whose sum is σ = 577448363520. Its totient is φ = 61722119040.

The previous prime is 216285276371. The next prime is 216285276439. The reversal of 216285276396 is 693672582612.

It is a super-2 number, since 2×216285276396² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1463985 + ... + 1604936.

It is an arithmetic number, because the mean of its divisors is an integer number (12030174240).

Almost surely, 2^216285276396 is an apocalyptic number.

It is an amenable number.

216285276396 is an abundant number, since it is smaller than the sum of its proper divisors (361163087124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216285276396 is a wasteful number, since it uses less digits than its factorization.

216285276396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069774 (or 3069772 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 216285276396 in words is "two hundred sixteen billion, two hundred eighty-five million, two hundred seventy-six thousand, three hundred ninety-six".