3216457660 has 24 divisors (see below), whose sum is σ = 7274143296. Its totient is φ = 1187615040.

The previous prime is 3216457649. The next prime is 3216457661. The reversal of 3216457660 is 667546123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216457661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6185236 + ... + 6185755.

It is an arithmetic number, because the mean of its divisors is an integer number (303089304).

Almost surely, 2^3216457660 is an apocalyptic number.

It is an amenable number.

3216457660 is an abundant number, since it is smaller than the sum of its proper divisors (4057685636).

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

3216457660 is a wasteful number, since it uses less digits than its factorization.

3216457660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12371013 (or 12371011 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 3216457660 is about 56713.8224774173. The cubic root of 3216457660 is about 1476.1345533092.

The spelling of 3216457660 in words is "three billion, two hundred sixteen million, four hundred fifty-seven thousand, six hundred sixty".