6412540216 has 64 divisors (see below), whose sum is σ = 13269934080. Its totient is φ = 2891773440.

The previous prime is 6412540181. The next prime is 6412540229. The reversal of 6412540216 is 6120452146.

It is a happy number.

It is a super-2 number, since 2×6412540216² = 82241344043634653312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426865 + ... + 441631.

It is an arithmetic number, because the mean of its divisors is an integer number (207342720).

Almost surely, 2^6412540216 is an apocalyptic number.

It is an amenable number.

6412540216 is an abundant number, since it is smaller than the sum of its proper divisors (6857393864).

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

6412540216 is a wasteful number, since it uses less digits than its factorization.

6412540216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14924 (or 14920 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 6412540216 is about 80078.3379947411. The cubic root of 6412540216 is about 1857.8473782596.

The spelling of 6412540216 in words is "six billion, four hundred twelve million, five hundred forty thousand, two hundred sixteen".