216180283350340 has 24 divisors (see below), whose sum is σ = 466248286795032. Its totient is φ = 84135029195520.

The previous prime is 216180283350319. The next prime is 216180283350359. The reversal of 216180283350340 is 43053382081612.

It can be written as a sum of positive squares in 4 ways, for example, as 60256313100036 + 155923970250304 = 7762494^2 + 12486952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146067758281 + ... + 146067759760.

It is an arithmetic number, because the mean of its divisors is an integer number (19427011949793).

Almost surely, 2^{216180283350340} is an apocalyptic number.

216180283350340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216180283350340 is an abundant number, since it is smaller than the sum of its proper divisors (250068003444692).

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

216180283350340 is a wasteful number, since it uses less digits than its factorization.

216180283350340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292135518087 (or 292135518085 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 216180283350340 in words is "two hundred sixteen trillion, one hundred eighty billion, two hundred eighty-three million, three hundred fifty thousand, three hundred forty".