216301570838 has 48 divisors (see below), whose sum is σ = 364144243200. Its totient is φ = 96074501760.

The previous prime is 216301570817. The next prime is 216301570861. The reversal of 216301570838 is 838075103612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2939783 + ... + 3012461.

It is an arithmetic number, because the mean of its divisors is an integer number (7586338400).

Almost surely, 2^216301570838 is an apocalyptic number.

216301570838 is a deficient number, since it is larger than the sum of its proper divisors (147842672362).

216301570838 is a wasteful number, since it uses less digits than its factorization.

216301570838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73005 (or 72988 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 216301570838 in words is "two hundred sixteen billion, three hundred one million, five hundred seventy thousand, eight hundred thirty-eight".