11667238616 has 64 divisors (see below), whose sum is σ = 24773299200. Its totient is φ = 5103331200.

The previous prime is 11667238519. The next prime is 11667238619. The reversal of 11667238616 is 61683276611.

It is a super-2 number, since 2×11667238616² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667238619) 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, 476366 + ... + 500258.

It is an arithmetic number, because the mean of its divisors is an integer number (387082800).

Almost surely, 2^11667238616 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 11667238616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12386649600).

11667238616 is an abundant number, since it is smaller than the sum of its proper divisors (13106060584).

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

11667238616 is a wasteful number, since it uses less digits than its factorization.

11667238616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24120 (or 24116 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The spelling of 11667238616 in words is "eleven billion, six hundred sixty-seven million, two hundred thirty-eight thousand, six hundred sixteen".