3721166120 has 64 divisors (see below), whose sum is σ = 9627534720. Its totient is φ = 1267985664.

The previous prime is 3721166107. The next prime is 3721166143. The reversal of 3721166120 is 216611273.

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, 4874 + ... + 86406.

It is an arithmetic number, because the mean of its divisors is an integer number (150430230).

Almost surely, 2^3721166120 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 3721166120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4813767360).

3721166120 is an abundant number, since it is smaller than the sum of its proper divisors (5906368600).

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

3721166120 is a wasteful number, since it uses less digits than its factorization.

3721166120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81714 (or 81710 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 3721166120 is about 61001.3616241474. The cubic root of 3721166120 is about 1549.6240669981.

Adding to 3721166120 its reverse (216611273), we get a palindrome (3937777393).

The spelling of 3721166120 in words is "three billion, seven hundred twenty-one million, one hundred sixty-six thousand, one hundred twenty".