213221680480 has 24 divisors (see below), whose sum is σ = 503736220512. Its totient is φ = 85288672128.

The previous prime is 213221680429. The next prime is 213221680487. The reversal of 213221680480 is 84086122312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213221680487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666317592 + ... + 666317911.

It is an arithmetic number, because the mean of its divisors is an integer number (20989009188).

Almost surely, 2^213221680480 is an apocalyptic number.

213221680480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213221680480 is an abundant number, since it is smaller than the sum of its proper divisors (290514540032).

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

213221680480 is a wasteful number, since it uses less digits than its factorization.

213221680480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332635518 (or 1332635510 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 213221680480 in words is "two hundred thirteen billion, two hundred twenty-one million, six hundred eighty thousand, four hundred eighty".