195266118420 has 480 divisors, whose sum is σ = 675751507200. Its totient is φ = 46994411520.

The previous prime is 195266118401. The next prime is 195266118431. The reversal of 195266118420 is 24811662591.

195266118420 is a `hidden beast` number, since 1 + 9 + 5 + 2 + 6 + 611 + 8 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 72346231 + ... + 72348929.

It is an arithmetic number, because the mean of its divisors is an integer number (1407815640).

Almost surely, 2^195266118420 is an apocalyptic number.

195266118420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195266118420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337875753600).

195266118420 is an abundant number, since it is smaller than the sum of its proper divisors (480485388780).

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

195266118420 is a wasteful number, since it uses less digits than its factorization.

195266118420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845 (or 2834 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 195266118420 in words is "one hundred ninety-five billion, two hundred sixty-six million, one hundred eighteen thousand, four hundred twenty".