2153256266 has 16 divisors (see below), whose sum is σ = 3708795840. Its totient is φ = 918449280.

The previous prime is 2153256233. The next prime is 2153256277. The reversal of 2153256266 is 6626523512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361511 + ... + 367418.

It is an arithmetic number, because the mean of its divisors is an integer number (231799740).

Almost surely, 2^2153256266 is an apocalyptic number.

2153256266 is a deficient number, since it is larger than the sum of its proper divisors (1555539574).

2153256266 is a wasteful number, since it uses less digits than its factorization.

2153256266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729149.

The product of its digits is 129600, while the sum is 38.

The square root of 2153256266 is about 46403.1924117296. The cubic root of 2153256266 is about 1291.3141398517.

Adding to 2153256266 its reverse (6626523512), we get a palindrome (8779779778).

The spelling of 2153256266 in words is "two billion, one hundred fifty-three million, two hundred fifty-six thousand, two hundred sixty-six".