195941185440 has 1152 divisors, whose sum is σ = 844332926976. Its totient is φ = 37164441600.

The previous prime is 195941185387. The next prime is 195941185457. The reversal of 195941185440 is 44581149591.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 692371539 + ... + 692371821.

It is an arithmetic number, because the mean of its divisors is an integer number (732927888).

Almost surely, 2^195941185440 is an apocalyptic number.

195941185440 is a gapful number since it is divisible by the number (10) 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 195941185440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422166463488).

195941185440 is an abundant number, since it is smaller than the sum of its proper divisors (648391741536).

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

195941185440 is a wasteful number, since it uses less digits than its factorization.

195941185440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 195941185440 in words is "one hundred ninety-five billion, nine hundred forty-one million, one hundred eighty-five thousand, four hundred forty".