3420111660 has 96 divisors (see below), whose sum is σ = 10996511232. Its totient is φ = 778014720.

The previous prime is 3420111649. The next prime is 3420111679. The reversal of 3420111660 is 661110243.

It is a self number, because there is not a number n which added to its sum of digits gives 3420111660.

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 31 ways as a sum of consecutive naturals, for example, 69324 + ... + 107916.

It is an arithmetic number, because the mean of its divisors is an integer number (114546992).

Almost surely, 2^3420111660 is an apocalyptic number.

3420111660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420111660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5498255616).

3420111660 is an abundant number, since it is smaller than the sum of its proper divisors (7576399572).

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

3420111660 is a wasteful number, since it uses less digits than its factorization.

3420111660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38823 (or 38821 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 3420111660 is about 58481.7207339182. The cubic root of 3420111660 is about 1506.6536512002.

The spelling of 3420111660 in words is "three billion, four hundred twenty million, one hundred eleven thousand, six hundred sixty".