195556045520 has 40 divisors (see below), whose sum is σ = 496001244960. Its totient is φ = 71111288960.

The previous prime is 195556045513. The next prime is 195556045541. The reversal of 195556045520 is 25540655591.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111110510 + ... + 111112269.

It is an arithmetic number, because the mean of its divisors is an integer number (12400031124).

Almost surely, 2^195556045520 is an apocalyptic number.

195556045520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195556045520 is an abundant number, since it is smaller than the sum of its proper divisors (300445199440).

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

195556045520 is a wasteful number, since it uses less digits than its factorization.

195556045520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222222803 (or 222222797 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 47.

The spelling of 195556045520 in words is "one hundred ninety-five billion, five hundred fifty-six million, forty-five thousand, five hundred twenty".