195955637376 has 192 divisors, whose sum is σ = 540834559200. Its totient is φ = 62860492800.

The previous prime is 195955637363. The next prime is 195955637377. The reversal of 195955637376 is 673736559591.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×195955637376² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (195955637377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122394976 + ... + 122396576.

Almost surely, 2^195955637376 is an apocalyptic number.

195955637376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195955637376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270417279600).

195955637376 is an abundant number, since it is smaller than the sum of its proper divisors (344878921824).

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

195955637376 is a wasteful number, since it uses less digits than its factorization.

195955637376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2014 counting only the distinct ones).

The product of its digits is 160744500, while the sum is 66.

The spelling of 195955637376 in words is "one hundred ninety-five billion, nine hundred fifty-five million, six hundred thirty-seven thousand, three hundred seventy-six".