195900155455 has 4 divisors (see below), whose sum is σ = 235080186552. Its totient is φ = 156720124360.

The previous prime is 195900155419. The next prime is 195900155551. The reversal of 195900155455 is 554551009591.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 195900155455 - 2³⁷ = 58461201983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195900155399 and 195900155408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19590015541 + ... + 19590015550.

It is an arithmetic number, because the mean of its divisors is an integer number (58770046638).

Almost surely, 2^195900155455 is an apocalyptic number.

195900155455 is a deficient number, since it is larger than the sum of its proper divisors (39180031097).

195900155455 is an equidigital number, since it uses as much as digits as its factorization.

195900155455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39180031096.

The product of its (nonzero) digits is 1012500, while the sum is 49.

The spelling of 195900155455 in words is "one hundred ninety-five billion, nine hundred million, one hundred fifty-five thousand, four hundred fifty-five".