2722166980 has 96 divisors (see below), whose sum is σ = 6279275520. Its totient is φ = 985205760.

The previous prime is 2722166963. The next prime is 2722166989. The reversal of 2722166980 is 896612272.

It is not an unprimeable number, because it can be changed into a prime (2722166989) 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, 4411632 + ... + 4412248.

It is an arithmetic number, because the mean of its divisors is an integer number (65409120).

Almost surely, 2^2722166980 is an apocalyptic number.

2722166980 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 2722166980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3139637760).

2722166980 is an abundant number, since it is smaller than the sum of its proper divisors (3557108540).

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

2722166980 is a wasteful number, since it uses less digits than its factorization.

2722166980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2722166980 is about 52174.3900778917. The cubic root of 2722166980 is about 1396.2770096673.

The spelling of 2722166980 in words is "two billion, seven hundred twenty-two million, one hundred sixty-six thousand, nine hundred eighty".