2162672680 has 128 divisors (see below), whose sum is σ = 6091718400. Its totient is φ = 673763328.

The previous prime is 2162672641. The next prime is 2162672683. The reversal of 2162672680 is 862762612.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2162672683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130207 + ... + 145873.

It is an arithmetic number, because the mean of its divisors is an integer number (47591550).

Almost surely, 2^2162672680 is an apocalyptic number.

2162672680 is a gapful number since it is divisible by the number (20) 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 2162672680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3045859200).

2162672680 is an abundant number, since it is smaller than the sum of its proper divisors (3929045720).

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

2162672680 is a wasteful number, since it uses less digits than its factorization.

2162672680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15731 (or 15727 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 2162672680 is about 46504.5447241450. The cubic root of 2162672680 is about 1293.1937530192.

The spelling of 2162672680 in words is "two billion, one hundred sixty-two million, six hundred seventy-two thousand, six hundred eighty".