11566426746 has 64 divisors (see below), whose sum is σ = 26845959168. Its totient is φ = 3253799808.

The previous prime is 11566426727. The next prime is 11566426759. The reversal of 11566426746 is 64762466511.

It is a junction number, because it is equal to n+sod(n) for n = 11566426695 and 11566426704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1968505 + ... + 1974371.

It is an arithmetic number, because the mean of its divisors is an integer number (419468112).

Almost surely, 2^11566426746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11566426746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13422979584).

11566426746 is an abundant number, since it is smaller than the sum of its proper divisors (15279532422).

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

11566426746 is a wasteful number, since it uses less digits than its factorization.

11566426746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595.

The product of its digits is 1451520, while the sum is 48.

The spelling of 11566426746 in words is "eleven billion, five hundred sixty-six million, four hundred twenty-six thousand, seven hundred forty-six".