850239866164 has 12 divisors (see below), whose sum is σ = 1602375132484. Its totient is φ = 392418399744.

The previous prime is 850239866143. The next prime is 850239866183. The reversal of 850239866164 is 461668932058.

It can be written as a sum of positive squares in 2 ways, for example, as 367551187600 + 482688678564 = 606260^2 + 694758^2 .

It is a super-3 number, since 3×850239866164³ (a number of 37 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 850239866099 and 850239866108.

It is a congruent number.

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, 8175383277 + ... + 8175383380.

Almost surely, 2^850239866164 is an apocalyptic number.

It is an amenable number.

850239866164 is a deficient number, since it is larger than the sum of its proper divisors (752135266320).

850239866164 is a wasteful number, since it uses less digits than its factorization.

850239866164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16350766674 (or 16350766672 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 850239866164 in words is "eight hundred fifty billion, two hundred thirty-nine million, eight hundred sixty-six thousand, one hundred sixty-four".