85105817146 has 48 divisors (see below), whose sum is σ = 163036276416. Its totient is φ = 32521606272.

The previous prime is 85105817123. The next prime is 85105817201. The reversal of 85105817146 is 64171850158.

It is a super-2 number, since 2×85105817146² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85105817096 and 85105817105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409356 + ... + 581191.

It is an arithmetic number, because the mean of its divisors is an integer number (3396589092).

Almost surely, 2^85105817146 is an apocalyptic number.

85105817146 is a deficient number, since it is larger than the sum of its proper divisors (77930459270).

85105817146 is a wasteful number, since it uses less digits than its factorization.

85105817146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990611 (or 990592 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 46.

The spelling of 85105817146 in words is "eighty-five billion, one hundred five million, eight hundred seventeen thousand, one hundred forty-six".