195266973020 has 48 divisors (see below), whose sum is σ = 469369786368. Its totient is φ = 66844526400.

The previous prime is 195266972987. The next prime is 195266973079. The reversal of 195266973020 is 20379662591.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 195266973020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994556 + ... + 1174595.

It is an arithmetic number, because the mean of its divisors is an integer number (9778537216).

Almost surely, 2^195266973020 is an apocalyptic number.

195266973020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195266973020 is an abundant number, since it is smaller than the sum of its proper divisors (274102813348).

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

195266973020 is a wasteful number, since it uses less digits than its factorization.

195266973020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169810 (or 2169808 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 195266973020 in words is "one hundred ninety-five billion, two hundred sixty-six million, nine hundred seventy-three thousand, twenty".