85123032158 has 4 divisors (see below), whose sum is σ = 127684548240. Its totient is φ = 42561516078.

The previous prime is 85123032149. The next prime is 85123032161.

85123032158 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, 21280758038 + ... + 21280758041.

It is an arithmetic number, because the mean of its divisors is an integer number (31921137060).

Almost surely, 2^85123032158 is an apocalyptic number.

85123032158 is a deficient number, since it is larger than the sum of its proper divisors (42561516082).

85123032158 is a wasteful number, since it uses less digits than its factorization.

85123032158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42561516081.

The product of its (nonzero) digits is 57600, while the sum is 38.

It can be divided in two parts, 851230 and 32158, that added together give a palindrome (883388).

The spelling of 85123032158 in words is "eighty-five billion, one hundred twenty-three million, thirty-two thousand, one hundred fifty-eight".