85455055161 has 80 divisors (see below), whose sum is σ = 150885335040. Its totient is φ = 47186362080.

The previous prime is 85455055157. The next prime is 85455055171. The reversal of 85455055161 is 16155055458.

85455055161 is a `hidden beast` number, since 8 + 5 + 45 + 50 + 551 + 6 + 1 = 666.

It is not a de Polignac number, because 85455055161 - 2² = 85455055157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85455055121) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2084976 + ... + 2125566.

It is an arithmetic number, because the mean of its divisors is an integer number (1886066688).

Almost surely, 2^85455055161 is an apocalyptic number.

85455055161 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

85455055161 is a deficient number, since it is larger than the sum of its proper divisors (65430279879).

85455055161 is a wasteful number, since it uses less digits than its factorization.

85455055161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40736 (or 40727 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 45.

The spelling of 85455055161 in words is "eighty-five billion, four hundred fifty-five million, fifty-five thousand, one hundred sixty-one".