80850211636 has 6 divisors (see below), whose sum is σ = 141487870370. Its totient is φ = 40425105816.

The previous prime is 80850211543. The next prime is 80850211721. The reversal of 80850211636 is 63611205808.

It can be written as a sum of positive squares in only one way, i.e., 80368848036 + 481363600 = 283494^2 + 21940^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106276451 + ... + 10106276458.

Almost surely, 2^80850211636 is an apocalyptic number.

It is an amenable number.

80850211636 is a deficient number, since it is larger than the sum of its proper divisors (60637658734).

80850211636 is a wasteful number, since it uses less digits than its factorization.

80850211636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20212552913 (or 20212552911 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 80850211636 in words is "eighty billion, eight hundred fifty million, two hundred eleven thousand, six hundred thirty-six".