11091657426 has 16 divisors (see below), whose sum is σ = 22201923744. Its totient is φ = 3694117664.

The previous prime is 11091657407. The next prime is 11091657443. The reversal of 11091657426 is 62475619011.

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, 767616 + ... + 781931.

It is an arithmetic number, because the mean of its divisors is an integer number (1387620234).

Almost surely, 2^11091657426 is an apocalyptic number.

11091657426 is an abundant number, since it is smaller than the sum of its proper divisors (11110266318).

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

11091657426 is a wasteful number, since it uses less digits than its factorization.

11091657426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550745.

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 11091657426 in words is "eleven billion, ninety-one million, six hundred fifty-seven thousand, four hundred twenty-six".