85606387838266 has 4 divisors (see below), whose sum is σ = 128409581757402. Its totient is φ = 42803193919132.

The previous prime is 85606387838197. The next prime is 85606387838287. The reversal of 85606387838266 is 66283878360658.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72623546583025 + 12982841255241 = 8521945^2 + 3603171^2 .

It is a super-3 number, since 3×85606387838266³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85606387838192 and 85606387838201.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21401596959565 + ... + 21401596959568.

Almost surely, 2^{85606387838266} is an apocalyptic number.

85606387838266 is a deficient number, since it is larger than the sum of its proper divisors (42803193919136).

85606387838266 is a wasteful number, since it uses less digits than its factorization.

85606387838266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42803193919135.

The product of its (nonzero) digits is 3344302080, while the sum is 76.

The spelling of 85606387838266 in words is "eighty-five trillion, six hundred six billion, three hundred eighty-seven million, eight hundred thirty-eight thousand, two hundred sixty-six".