2126331663 has 32 divisors (see below), whose sum is σ = 2932531200. Its totient is φ = 1369944576.

The previous prime is 2126331619. The next prime is 2126331677. The reversal of 2126331663 is 3661336212.

It is not a de Polignac number, because 2126331663 - 2⁸ = 2126331407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126331863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2474928 + ... + 2475786.

It is an arithmetic number, because the mean of its divisors is an integer number (91641600).

Almost surely, 2^2126331663 is an apocalyptic number.

2126331663 is a deficient number, since it is larger than the sum of its proper divisors (806199537).

2126331663 is a wasteful number, since it uses less digits than its factorization.

2126331663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151.

The product of its digits is 23328, while the sum is 33.

The square root of 2126331663 is about 46112.1639375122. The cubic root of 2126331663 is about 1285.9092945884.

Adding to 2126331663 its reverse (3661336212), we get a palindrome (5787667875).

The spelling of 2126331663 in words is "two billion, one hundred twenty-six million, three hundred thirty-one thousand, six hundred sixty-three".