195951960 has 160 divisors (see below), whose sum is σ = 664115760. Its totient is φ = 51819264.

The previous prime is 195951953. The next prime is 195951967. The reversal of 195951960 is 69159591.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (195951953) and next prime (195951967).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195951967) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 638127 + ... + 638433.

Almost surely, 2^195951960 is an apocalyptic number.

195951960 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 195951960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332057880).

195951960 is an abundant number, since it is smaller than the sum of its proper divisors (468163800).

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

195951960 is a wasteful number, since it uses less digits than its factorization.

195951960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 45.

The square root of 195951960 is about 13998.2841805701. The cubic root of 195951960 is about 580.8311113039.

The spelling of 195951960 in words is "one hundred ninety-five million, nine hundred fifty-one thousand, nine hundred sixty".