850116172450 has 12 divisors (see below), whose sum is σ = 1581216080850. Its totient is φ = 340046468960.

The previous prime is 850116172429. The next prime is 850116172459. The reversal of 850116172450 is 54271611058.

It can be written as a sum of positive squares in 3 ways, for example, as 739818456129 + 110297716321 = 860127^2 + 332111^2 .

It is a super-2 number, since 2×850116172450² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (850116172459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8501161675 + ... + 8501161774.

Almost surely, 2^850116172450 is an apocalyptic number.

850116172450 is a deficient number, since it is larger than the sum of its proper divisors (731099908400).

850116172450 is a wasteful number, since it uses less digits than its factorization.

850116172450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17002323461 (or 17002323456 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 850116172450 in words is "eight hundred fifty billion, one hundred sixteen million, one hundred seventy-two thousand, four hundred fifty".