195345495677640 has 256 divisors, whose sum is σ = 730661057280000. Its totient is φ = 40590262702080.

The previous prime is 195345495677609. The next prime is 195345495677653. The reversal of 195345495677640 is 46776594543591.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 405293511 + ... + 405775209.

It is an arithmetic number, because the mean of its divisors is an integer number (2854144755000).

Almost surely, 2^{195345495677640} is an apocalyptic number.

195345495677640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195345495677640 is an abundant number, since it is smaller than the sum of its proper divisors (535315561602360).

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

195345495677640 is a wasteful number, since it uses less digits than its factorization.

195345495677640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525620 (or 525616 counting only the distinct ones).

The product of its (nonzero) digits is 3429216000, while the sum is 75.

The spelling of 195345495677640 in words is "one hundred ninety-five trillion, three hundred forty-five billion, four hundred ninety-five million, six hundred seventy-seven thousand, six hundred forty".