12113351646 has 16 divisors (see below), whose sum is σ = 26429131008. Its totient is φ = 3670712600.

The previous prime is 12113351633. The next prime is 12113351647. The reversal of 12113351646 is 64615331121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113351647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91767750 + ... + 91767881.

It is an arithmetic number, because the mean of its divisors is an integer number (1651820688).

Almost surely, 2^12113351646 is an apocalyptic number.

12113351646 is an abundant number, since it is smaller than the sum of its proper divisors (14315779362).

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

12113351646 is a wasteful number, since it uses less digits than its factorization.

12113351646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183535647.

The product of its digits is 12960, while the sum is 33.

Adding to 12113351646 its reverse (64615331121), we get a palindrome (76728682767).

The spelling of 12113351646 in words is "twelve billion, one hundred thirteen million, three hundred fifty-one thousand, six hundred forty-six".