2163372771 has 16 divisors (see below), whose sum is σ = 3305417984. Its totient is φ = 1232894304.

The previous prime is 2163372763. The next prime is 2163372793. The reversal of 2163372771 is 1772733612.

It is not a de Polignac number, because 2163372771 - 2³ = 2163372763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163372671) 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, 130261 + ... + 145926.

It is an arithmetic number, because the mean of its divisors is an integer number (206588624).

Almost surely, 2^2163372771 is an apocalyptic number.

2163372771 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2163372771 is a deficient number, since it is larger than the sum of its proper divisors (1142045213).

2163372771 is a wasteful number, since it uses less digits than its factorization.

2163372771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276570.

The product of its digits is 74088, while the sum is 39.

The square root of 2163372771 is about 46512.0712396255. The cubic root of 2163372771 is about 1293.3332803182. Note that the first 3 decimals are identical.

The spelling of 2163372771 in words is "two billion, one hundred sixty-three million, three hundred seventy-two thousand, seven hundred seventy-one".