216065371154 has 8 divisors (see below), whose sum is σ = 324216825660. Its totient is φ = 107993095936.

The previous prime is 216065371091. The next prime is 216065371177. The reversal of 216065371154 is 451173560612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 158664398929 + 57400972225 = 398327^2 + 239585^2 .

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

It is a super-2 number, since 2×216065371154² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19787999 + ... + 19798914.

Almost surely, 2^216065371154 is an apocalyptic number.

216065371154 is a deficient number, since it is larger than the sum of its proper divisors (108151454506).

216065371154 is a wasteful number, since it uses less digits than its factorization.

216065371154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39589644.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 216065371154 in words is "two hundred sixteen billion, sixty-five million, three hundred seventy-one thousand, one hundred fifty-four".