195686064 has 160 divisors (see below), whose sum is σ = 647498240. Its totient is φ = 55427328.

The previous prime is 195686027. The next prime is 195686069. The reversal of 195686064 is 460686591.

It is not an unprimeable number, because it can be changed into a prime (195686069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492714 + ... + 493110.

It is an arithmetic number, because the mean of its divisors is an integer number (4046864).

Almost surely, 2^195686064 is an apocalyptic number.

195686064 is a gapful number since it is divisible by the number (14) 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 195686064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323749120).

195686064 is an abundant number, since it is smaller than the sum of its proper divisors (451812176).

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

195686064 is a wasteful number, since it uses less digits than its factorization.

195686064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 195686064 is about 13988.7835067957. The cubic root of 195686064 is about 580.5682737905.

The spelling of 195686064 in words is "one hundred ninety-five million, six hundred eighty-six thousand, sixty-four".