2103506660 has 12 divisors (see below), whose sum is σ = 4417364028. Its totient is φ = 841402656.

The previous prime is 2103506659. The next prime is 2103506689. The reversal of 2103506660 is 666053012.

It can be written as a sum of positive squares in 2 ways, for example, as 654029476 + 1449477184 = 25574^2 + 38072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52587647 + ... + 52587686.

It is an arithmetic number, because the mean of its divisors is an integer number (368113669).

Almost surely, 2^2103506660 is an apocalyptic number.

2103506660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103506660 is an abundant number, since it is smaller than the sum of its proper divisors (2313857368).

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

2103506660 is a wasteful number, since it uses less digits than its factorization.

2103506660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105175342 (or 105175340 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2103506660 is about 45864.0017878946. The cubic root of 2103506660 is about 1281.2915552336.

Adding to 2103506660 its reverse (666053012), we get a palindrome (2769559672).

The spelling of 2103506660 in words is "two billion, one hundred three million, five hundred six thousand, six hundred sixty".