216125016 has 32 divisors (see below), whose sum is σ = 541416960. Its totient is φ = 71894432.

The previous prime is 216125011. The next prime is 216125017. The reversal of 216125016 is 610521612.

216125016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216125011) 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, 3121 + ... + 21023.

It is an arithmetic number, because the mean of its divisors is an integer number (16919280).

Almost surely, 2^216125016 is an apocalyptic number.

It is an amenable number.

216125016 is an abundant number, since it is smaller than the sum of its proper divisors (325291944).

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

216125016 is a wasteful number, since it uses less digits than its factorization.

216125016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18415 (or 18411 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 216125016 is about 14701.1909721628. The cubic root of 216125016 is about 600.1157332305.

Adding to 216125016 its reverse (610521612), we get a palindrome (826646628).

The spelling of 216125016 in words is "two hundred sixteen million, one hundred twenty-five thousand, sixteen".