2163353646 has 16 divisors (see below), whose sum is σ = 4331629008. Its totient is φ = 720297600.

The previous prime is 2163353641. The next prime is 2163353653. The reversal of 2163353646 is 6463533612.

It is a super-2 number, since 2×2163353646² = 9360197995322986632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163353641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199345 + ... + 209916.

It is an arithmetic number, because the mean of its divisors is an integer number (270726813).

Almost surely, 2^2163353646 is an apocalyptic number.

2163353646 is an abundant number, since it is smaller than the sum of its proper divisors (2168275362).

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

2163353646 is a wasteful number, since it uses less digits than its factorization.

2163353646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410147.

The product of its digits is 233280, while the sum is 39.

The square root of 2163353646 is about 46511.8656473808. The cubic root of 2163353646 is about 1293.3294691285.

The spelling of 2163353646 in words is "two billion, one hundred sixty-three million, three hundred fifty-three thousand, six hundred forty-six".