216654026 has 4 divisors (see below), whose sum is σ = 324981042. Its totient is φ = 108327012.

The previous prime is 216654019. The next prime is 216654029. The reversal of 216654026 is 620456612.

216654026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214651801 + 2002225 = 14651^2 + 1415^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216653983 and 216654001.

It is not an unprimeable number, because it can be changed into a prime (216654029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54163505 + ... + 54163508.

Almost surely, 2^216654026 is an apocalyptic number.

216654026 is a deficient number, since it is larger than the sum of its proper divisors (108327016).

216654026 is a wasteful number, since it uses less digits than its factorization.

216654026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108327015.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 216654026 is about 14719.1720555200. The cubic root of 216654026 is about 600.6049694446.

The spelling of 216654026 in words is "two hundred sixteen million, six hundred fifty-four thousand, twenty-six".