216516250149 has 8 divisors (see below), whose sum is σ = 291546634272. Its totient is φ = 142915016400.

The previous prime is 216516250127. The next prime is 216516250183. The reversal of 216516250149 is 941052615612.

It is a happy number.

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

It is not a de Polignac number, because 216516250149 - 2¹³ = 216516241957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216516250149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216516250189) 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, 357287239 + ... + 357287844.

It is an arithmetic number, because the mean of its divisors is an integer number (36443329284).

Almost surely, 2^216516250149 is an apocalyptic number.

It is an amenable number.

216516250149 is a deficient number, since it is larger than the sum of its proper divisors (75030384123).

216516250149 is a wasteful number, since it uses less digits than its factorization.

216516250149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714575187.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 216516250149 in words is "two hundred sixteen billion, five hundred sixteen million, two hundred fifty thousand, one hundred forty-nine".