2163561522 has 16 divisors (see below), whose sum is σ = 4355781312. Its totient is φ = 716410800.

The previous prime is 2163561479. The next prime is 2163561523. The reversal of 2163561522 is 2251653612.

It is not an unprimeable number, because it can be changed into a prime (2163561523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193113 + ... + 1194924.

It is an arithmetic number, because the mean of its divisors is an integer number (272236332).

Almost surely, 2^2163561522 is an apocalyptic number.

2163561522 is an abundant number, since it is smaller than the sum of its proper divisors (2192219790).

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

2163561522 is a wasteful number, since it uses less digits than its factorization.

2163561522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388193.

The product of its digits is 21600, while the sum is 33.

The square root of 2163561522 is about 46514.1002492793. The cubic root of 2163561522 is about 1293.3708930147.

The spelling of 2163561522 in words is "two billion, one hundred sixty-three million, five hundred sixty-one thousand, five hundred twenty-two".