185755145135868 has 144 divisors (see below), whose sum is σ = 585436145059584. Its totient is φ = 48245947557120.

The previous prime is 185755145135867. The next prime is 185755145135939. The reversal of 185755145135868 is 868531541557581.

185755145135868 is a `hidden beast` number, since 1 + 8 + 5 + 7 + 5 + 51 + 4 + 513 + 58 + 6 + 8 = 666.

It is a super-2 number, since 2×185755145135868² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 185755145135796 and 185755145135805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185755145135867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61439871 + ... + 64392297.

It is an arithmetic number, because the mean of its divisors is an integer number (4065528785136).

Almost surely, 2^{185755145135868} is an apocalyptic number.

185755145135868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

185755145135868 is an abundant number, since it is smaller than the sum of its proper divisors (399680999923716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

185755145135868 is a wasteful number, since it uses less digits than its factorization.

185755145135868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975152 (or 2975147 counting only the distinct ones).

The product of its digits is 806400000, while the sum is 72.

The spelling of 185755145135868 in words is "one hundred eighty-five trillion, seven hundred fifty-five billion, one hundred forty-five million, one hundred thirty-five thousand, eight hundred sixty-eight".