6216660450 has 576 divisors, whose sum is σ = 23093021952. Its totient is φ = 1157068800.

The previous prime is 6216660449. The next prime is 6216660469. The reversal of 6216660450 is 540666126.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 16666464 + ... + 16666836.

It is an arithmetic number, because the mean of its divisors is an integer number (40092052).

Almost surely, 2^6216660450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6216660450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11546510976).

6216660450 is an abundant number, since it is smaller than the sum of its proper divisors (16876361502).

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

6216660450 is a wasteful number, since it uses less digits than its factorization.

6216660450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 6216660450 is about 78845.8017271687. The cubic root of 6216660450 is about 1838.7346027524.

It can be divided in two parts, 6216 and 660450, that added together give a palindrome (666666).

The spelling of 6216660450 in words is "six billion, two hundred sixteen million, six hundred sixty thousand, four hundred fifty".