3216669620 has 48 divisors (see below), whose sum is σ = 7170499728. Its totient is φ = 1207910400.

The previous prime is 3216669611. The next prime is 3216669641. The reversal of 3216669620 is 269666123.

It can be written as a sum of positive squares in 8 ways, for example, as 92083216 + 3124586404 = 9596^2 + 55898^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124544 + ... + 148136.

It is an arithmetic number, because the mean of its divisors is an integer number (149385411).

Almost surely, 2^3216669620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3216669620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3585249864).

3216669620 is an abundant number, since it is smaller than the sum of its proper divisors (3953830108).

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

3216669620 is a wasteful number, since it uses less digits than its factorization.

3216669620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24020 (or 24018 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 3216669620 is about 56715.6911268830. The cubic root of 3216669620 is about 1476.1669776551.

The spelling of 3216669620 in words is "three billion, two hundred sixteen million, six hundred sixty-nine thousand, six hundred twenty".