85111211158 has 4 divisors (see below), whose sum is σ = 127666816740. Its totient is φ = 42555605578.

The previous prime is 85111211131. The next prime is 85111211203.

It is a happy number.

85111211158 is nontrivially palindromic in base 10.

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

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, 21277802788 + ... + 21277802791.

It is an arithmetic number, because the mean of its divisors is an integer number (31916704185).

Almost surely, 2^85111211158 is an apocalyptic number.

85111211158 is a deficient number, since it is larger than the sum of its proper divisors (42555605582).

85111211158 is a wasteful number, since it uses less digits than its factorization.

85111211158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42555605581.

The product of its digits is 3200, while the sum is 34.

The spelling of 85111211158 in words is "eighty-five billion, one hundred eleven million, two hundred eleven thousand, one hundred fifty-eight".