11355666789 has 16 divisors (see below), whose sum is σ = 15946854912. Its totient is φ = 7173614448.

The previous prime is 11355666779. The next prime is 11355666809. The reversal of 11355666789 is 98766655311.

It is not a de Polignac number, because 11355666789 - 2⁹ = 11355666277 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11355666719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761659 + ... + 776424.

It is an arithmetic number, because the mean of its divisors is an integer number (996678432).

Almost surely, 2^11355666789 is an apocalyptic number.

It is an amenable number.

11355666789 is a deficient number, since it is larger than the sum of its proper divisors (4591188123).

11355666789 is a wasteful number, since it uses less digits than its factorization.

11355666789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538216.

The product of its digits is 8164800, while the sum is 57.

The spelling of 11355666789 in words is "eleven billion, three hundred fifty-five million, six hundred sixty-six thousand, seven hundred eighty-nine".