216075651 has 8 divisors (see below), whose sum is σ = 314291904. Its totient is φ = 130954920.

The previous prime is 216075637. The next prime is 216075653. The reversal of 216075651 is 156570612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216075651 - 2¹⁴ = 216059267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6547747 = 216075651 / (2 + 1 + 6 + 0 + 7 + 5 + 6 + 5 + 1).

It is not an unprimeable number, because it can be changed into a prime (216075653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273841 + ... + 3273906.

It is an arithmetic number, because the mean of its divisors is an integer number (39286488).

Almost surely, 2^216075651 is an apocalyptic number.

216075651 is a deficient number, since it is larger than the sum of its proper divisors (98216253).

216075651 is a wasteful number, since it uses less digits than its factorization.

216075651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547761.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 216075651 is about 14699.5119306731. The cubic root of 216075651 is about 600.0700390461.

The spelling of 216075651 in words is "two hundred sixteen million, seventy-five thousand, six hundred fifty-one".