195918621360 has 640 divisors, whose sum is σ = 782457919488. Its totient is φ = 39698841600.

The previous prime is 195918621347. The next prime is 195918621361. The reversal of 195918621360 is 63126819591.

It is not an unprimeable number, because it can be changed into a prime (195918621361) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 91678212 + ... + 91680348.

Almost surely, 2^195918621360 is an apocalyptic number.

195918621360 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 195918621360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391228959744).

195918621360 is an abundant number, since it is smaller than the sum of its proper divisors (586539298128).

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

195918621360 is a wasteful number, since it uses less digits than its factorization.

195918621360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234 (or 2206 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 195918621360 in words is "one hundred ninety-five billion, nine hundred eighteen million, six hundred twenty-one thousand, three hundred sixty".