11131156646 has 8 divisors (see below), whose sum is σ = 16858839504. Its totient is φ = 5511543480.

The previous prime is 11131156633. The next prime is 11131156661. The reversal of 11131156646 is 64665113111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27017165 + ... + 27017576.

It is an arithmetic number, because the mean of its divisors is an integer number (2107354938).

Almost surely, 2^11131156646 is an apocalyptic number.

11131156646 is a deficient number, since it is larger than the sum of its proper divisors (5727682858).

11131156646 is a wasteful number, since it uses less digits than its factorization.

11131156646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54034846.

The product of its digits is 12960, while the sum is 35.

Adding to 11131156646 its reverse (64665113111), we get a palindrome (75796269757).

The spelling of 11131156646 in words is "eleven billion, one hundred thirty-one million, one hundred fifty-six thousand, six hundred forty-six".