11397645168 has 320 divisors, whose sum is σ = 37617592320. Its totient is φ = 2893418496.

The previous prime is 11397645167. The next prime is 11397645179. The reversal of 11397645168 is 86154679311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11397645168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397645167) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17615821 + ... + 17616467.

It is an arithmetic number, because the mean of its divisors is an integer number (117554976).

Almost surely, 2^11397645168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11397645168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18808796160).

11397645168 is an abundant number, since it is smaller than the sum of its proper divisors (26219947152).

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

11397645168 is a wasteful number, since it uses less digits than its factorization.

11397645168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 818 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 11397645168 in words is "eleven billion, three hundred ninety-seven million, six hundred forty-five thousand, one hundred sixty-eight".