216371746546 has 8 divisors (see below), whose sum is σ = 324743405040. Its totient is φ = 108123944868.

The previous prime is 216371746531. The next prime is 216371746573. The reversal of 216371746546 is 645647173612.

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

It is a junction number, because it is equal to n+sod(n) for n = 216371746493 and 216371746502.

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, 30959836 + ... + 30966823.

It is an arithmetic number, because the mean of its divisors is an integer number (40592925630).

Almost surely, 2^216371746546 is an apocalyptic number.

216371746546 is a deficient number, since it is larger than the sum of its proper divisors (108371658494).

216371746546 is a wasteful number, since it uses less digits than its factorization.

216371746546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61928408.

The product of its digits is 5080320, while the sum is 52.

The spelling of 216371746546 in words is "two hundred sixteen billion, three hundred seventy-one million, seven hundred forty-six thousand, five hundred forty-six".