215346680 has 32 divisors (see below), whose sum is σ = 485751600. Its totient is φ = 85921536.

The previous prime is 215346647. The next prime is 215346683. The reversal of 215346680 is 86643512.

It is a self number, because there is not a number n which added to its sum of digits gives 215346680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215346683) 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, 9779 + ... + 22941.

Almost surely, 2^215346680 is an apocalyptic number.

215346680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215346680 is an abundant number, since it is smaller than the sum of its proper divisors (270404920).

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

215346680 is a wasteful number, since it uses less digits than its factorization.

215346680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583 (or 13579 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 215346680 is about 14674.6952268182. The cubic root of 215346680 is about 599.3944631549.

The spelling of 215346680 in words is "two hundred fifteen million, three hundred forty-six thousand, six hundred eighty".