216136069632 has 640 divisors, whose sum is σ = 755913523200. Its totient is φ = 59695792128.

The previous prime is 216136069631. The next prime is 216136069661. The reversal of 216136069632 is 236960631612.

216136069632 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 3 + 6 + 0 + 6 + 9 + 632 = 666.

It is not an unprimeable number, because it can be changed into a prime (216136069631) 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, 528449844 + ... + 528450252.

It is an arithmetic number, because the mean of its divisors is an integer number (1181114880).

Almost surely, 2^216136069632 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 216136069632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377956761600).

216136069632 is an abundant number, since it is smaller than the sum of its proper divisors (539777453568).

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

216136069632 is a wasteful number, since it uses less digits than its factorization.

216136069632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 216136069632 in words is "two hundred sixteen billion, one hundred thirty-six million, sixty-nine thousand, six hundred thirty-two".