195651554551 has 8 divisors (see below), whose sum is σ = 200390204160. Its totient is φ = 190936898808.

The previous prime is 195651554533. The next prime is 195651554587. The reversal of 195651554551 is 155455156591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195651554551 - 2⁵ = 195651554519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195651554591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5981961 + ... + 6014578.

It is an arithmetic number, because the mean of its divisors is an integer number (25048775520).

Almost surely, 2^195651554551 is an apocalyptic number.

195651554551 is a deficient number, since it is larger than the sum of its proper divisors (4738649609).

195651554551 is a wasteful number, since it uses less digits than its factorization.

195651554551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11996933.

The product of its digits is 3375000, while the sum is 52.

The spelling of 195651554551 in words is "one hundred ninety-five billion, six hundred fifty-one million, five hundred fifty-four thousand, five hundred fifty-one".