216134066652 has 96 divisors (see below), whose sum is σ = 580186865664. Its totient is φ = 61343217600.

The previous prime is 216134066639. The next prime is 216134066669. The reversal of 216134066652 is 256660431612.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11911627 + ... + 11929757.

It is an arithmetic number, because the mean of its divisors is an integer number (6043613184).

Almost surely, 2^216134066652 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 216134066652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290093432832).

216134066652 is an abundant number, since it is smaller than the sum of its proper divisors (364052799012).

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

216134066652 is a wasteful number, since it uses less digits than its factorization.

216134066652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19079 (or 19077 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 216134066652 in words is "two hundred sixteen billion, one hundred thirty-four million, sixty-six thousand, six hundred fifty-two".