85160449012 has 6 divisors (see below), whose sum is σ = 149030785778. Its totient is φ = 42580224504.

The previous prime is 85160448983. The next prime is 85160449021. The reversal of 85160449012 is 21094406158.

It can be written as a sum of positive squares in only one way, i.e., 56109291876 + 29051157136 = 236874^2 + 170444^2 .

It is a super-2 number, since 2×85160449012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10645056123 + ... + 10645056130.

Almost surely, 2^85160449012 is an apocalyptic number.

It is an amenable number.

85160449012 is a deficient number, since it is larger than the sum of its proper divisors (63870336766).

85160449012 is a wasteful number, since it uses less digits than its factorization.

85160449012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21290112257 (or 21290112255 counting only the distinct ones).

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

The spelling of 85160449012 in words is "eighty-five billion, one hundred sixty million, four hundred forty-nine thousand, twelve".