190856618118 has 32 divisors (see below), whose sum is σ = 424268929920. Its totient is φ = 63597405960.

The previous prime is 190856618101. The next prime is 190856618171. The reversal of 190856618118 is 811816658091.

190856618118 is a `hidden beast` number, since 1 + 9 + 0 + 8 + 5 + 6 + 618 + 1 + 18 = 666.

190856618118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434380 + ... + 755247.

It is an arithmetic number, because the mean of its divisors is an integer number (13258404060).

Almost surely, 2^190856618118 is an apocalyptic number.

190856618118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

190856618118 is an abundant number, since it is smaller than the sum of its proper divisors (233412311802).

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

190856618118 is a wasteful number, since it uses less digits than its factorization.

190856618118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192609 (or 1192603 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 54.

The spelling of 190856618118 in words is "one hundred ninety billion, eight hundred fifty-six million, six hundred eighteen thousand, one hundred eighteen".