6216506164 has 18 divisors (see below), whose sum is σ = 11957784482. Its totient is φ = 2825684400.

The previous prime is 6216506137. The next prime is 6216506201. The reversal of 6216506164 is 4616056126.

It can be written as a sum of positive squares in only one way, i.e., 5286744100 + 929762064 = 72710^2 + 30492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6421527 + ... + 6422494.

Almost surely, 2^6216506164 is an apocalyptic number.

It is an amenable number.

6216506164 is a deficient number, since it is larger than the sum of its proper divisors (5741278318).

6216506164 is a wasteful number, since it uses less digits than its factorization.

6216506164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844047 (or 12844034 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 6216506164 is about 78844.8233177043. The cubic root of 6216506164 is about 1838.7193912973.

The spelling of 6216506164 in words is "six billion, two hundred sixteen million, five hundred six thousand, one hundred sixty-four".