10663138926 has 24 divisors (see below), whose sum is σ = 25203783384. Its totient is φ = 3231254160.

The previous prime is 10663138921. The next prime is 10663138943. The reversal of 10663138926 is 62983136601.

10663138926 is a `hidden beast` number, since 1 + 0 + 6 + 631 + 3 + 8 + 9 + 2 + 6 = 666.

It is a super-2 number, since 2×10663138926² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10663138921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26926921 + ... + 26927316.

It is an arithmetic number, because the mean of its divisors is an integer number (1050157641).

Almost surely, 2^10663138926 is an apocalyptic number.

10663138926 is an abundant number, since it is smaller than the sum of its proper divisors (14540644458).

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

10663138926 is a wasteful number, since it uses less digits than its factorization.

10663138926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53854256 (or 53854253 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 10663138926 in words is "ten billion, six hundred sixty-three million, one hundred thirty-eight thousand, nine hundred twenty-six".