195566053087 has 8 divisors (see below), whose sum is σ = 204582855600. Its totient is φ = 186700793664.

The previous prime is 195566053073. The next prime is 195566053127. The reversal of 195566053087 is 780350665591.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195566053087 is a prime.

It is a super-2 number, since 2×195566053087² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195566053387) 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, 37883133 + ... + 37888294.

It is an arithmetic number, because the mean of its divisors is an integer number (25572856950).

Almost surely, 2^195566053087 is an apocalyptic number.

195566053087 is a deficient number, since it is larger than the sum of its proper divisors (9016802513).

195566053087 is an equidigital number, since it uses as much as digits as its factorization.

195566053087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75771545.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 195566053087 in words is "one hundred ninety-five billion, five hundred sixty-six million, fifty-three thousand, eighty-seven".