216260243340 has 24 divisors (see below), whose sum is σ = 605528681520. Its totient is φ = 57669398208.

The previous prime is 216260243333. The next prime is 216260243341. The reversal of 216260243340 is 43342062612.

It is not an unprimeable number, because it can be changed into a prime (216260243341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802168635 + ... + 1802168754.

It is an arithmetic number, because the mean of its divisors is an integer number (25230361730).

Almost surely, 2^216260243340 is an apocalyptic number.

216260243340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216260243340 is an abundant number, since it is smaller than the sum of its proper divisors (389268438180).

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

216260243340 is a wasteful number, since it uses less digits than its factorization.

216260243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604337401 (or 3604337399 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 216260243340 in words is "two hundred sixteen billion, two hundred sixty million, two hundred forty-three thousand, three hundred forty".