2163266553 has 24 divisors (see below), whose sum is σ = 3402544320. Its totient is φ = 1218735840.

The previous prime is 2163266519. The next prime is 2163266557. The reversal of 2163266553 is 3556623612.

2163266553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2163266553 - 2¹² = 2163262457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2163266557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93198 + ... + 114071.

It is an arithmetic number, because the mean of its divisors is an integer number (141772680).

Almost surely, 2^2163266553 is an apocalyptic number.

It is an amenable number.

2163266553 is a deficient number, since it is larger than the sum of its proper divisors (1239277767).

2163266553 is a wasteful number, since it uses less digits than its factorization.

2163266553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207357 (or 207350 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The square root of 2163266553 is about 46510.9293929932. The cubic root of 2163266553 is about 1293.3121131351.

The spelling of 2163266553 in words is "two billion, one hundred sixty-three million, two hundred sixty-six thousand, five hundred fifty-three".