214521544520 has 16 divisors (see below), whose sum is σ = 482673475260. Its totient is φ = 85808617792.

The previous prime is 214521544469. The next prime is 214521544541. The reversal of 214521544520 is 25445125412.

It can be written as a sum of positive squares in 2 ways, for example, as 185001493924 + 29520050596 = 430118^2 + 171814^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2681519267 + ... + 2681519346.

Almost surely, 2^214521544520 is an apocalyptic number.

214521544520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214521544520 is an abundant number, since it is smaller than the sum of its proper divisors (268151930740).

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

214521544520 is a wasteful number, since it uses less digits than its factorization.

214521544520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5363038624 (or 5363038620 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 214521544520 its reverse (25445125412), we get a palindrome (239966669932).

The spelling of 214521544520 in words is "two hundred fourteen billion, five hundred twenty-one million, five hundred forty-four thousand, five hundred twenty".