855874161122 has 6 divisors (see below), whose sum is σ = 1283813204193. Its totient is φ = 427936426392.

The previous prime is 855874161097. The next prime is 855874161157. The reversal of 855874161122 is 221161478558.

It can be written as a sum of positive squares in 2 ways, for example, as 651896374801 + 203977786321 = 807401^2 + 451639^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=654169.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 981254 + ... + 1635422.

Almost surely, 2^855874161122 is an apocalyptic number.

855874161122 is a deficient number, since it is larger than the sum of its proper divisors (427939043071).

855874161122 is an frugal number, since it uses more digits than its factorization.

855874161122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308340 (or 654171 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 50.

Multiplying 855874161122 by its sum of digits (50), we get a square (42793708056100 = 6541690²).

The spelling of 855874161122 in words is "eight hundred fifty-five billion, eight hundred seventy-four million, one hundred sixty-one thousand, one hundred twenty-two".