2171674660 has 48 divisors (see below), whose sum is σ = 4623091200. Its totient is φ = 856819584.

The previous prime is 2171674649. The next prime is 2171674669. The reversal of 2171674660 is 664761712.

It is a super-2 number, since 2×2171674660² = 9432341657772231200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2171674669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552181 + ... + 556099.

It is an arithmetic number, because the mean of its divisors is an integer number (96314400).

Almost surely, 2^2171674660 is an apocalyptic number.

2171674660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2171674660 is an abundant number, since it is smaller than the sum of its proper divisors (2451416540).

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

2171674660 is a wasteful number, since it uses less digits than its factorization.

2171674660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 2171674660 is about 46601.2302412715. The cubic root of 2171674660 is about 1294.9855466652.

The spelling of 2171674660 in words is "two billion, one hundred seventy-one million, six hundred seventy-four thousand, six hundred sixty".