216672051850 has 48 divisors (see below), whose sum is σ = 410910737976. Its totient is φ = 84978720000.

The previous prime is 216672051847. The next prime is 216672051851. The reversal of 216672051850 is 58150276612.

It can be written as a sum of positive squares in 12 ways, for example, as 13704682489 + 202967369361 = 117067^2 + 450519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216672051797 and 216672051806.

It is not an unprimeable number, because it can be changed into a prime (216672051851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 854800 + ... + 1078900.

Almost surely, 2^216672051850 is an apocalyptic number.

216672051850 is a deficient number, since it is larger than the sum of its proper divisors (194238686126).

216672051850 is a wasteful number, since it uses less digits than its factorization.

216672051850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224491 (or 224486 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 216672051850 in words is "two hundred sixteen billion, six hundred seventy-two million, fifty-one thousand, eight hundred fifty".