4011216636 has 72 divisors (see below), whose sum is σ = 10917374160. Its totient is φ = 1142926848.

The previous prime is 4011216631. The next prime is 4011216637. The reversal of 4011216636 is 6366121104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011216631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210180 + ... + 228468.

Almost surely, 2^4011216636 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 4011216636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5458687080).

4011216636 is an abundant number, since it is smaller than the sum of its proper divisors (6906157524).

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

4011216636 is a wasteful number, since it uses less digits than its factorization.

4011216636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18683 (or 18674 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 4011216636 is about 63334.1664190822. The cubic root of 4011216636 is about 1588.8834421933.

The spelling of 4011216636 in words is "four billion, eleven million, two hundred sixteen thousand, six hundred thirty-six".