195166020 has 72 divisors (see below), whose sum is σ = 635693184. Its totient is φ = 44608704.

The previous prime is 195166003. The next prime is 195166031. The reversal of 195166020 is 20661591.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30252 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (8829072).

Almost surely, 2^195166020 is an apocalyptic number.

195166020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195166020 is an abundant number, since it is smaller than the sum of its proper divisors (440527164).

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

195166020 is a wasteful number, since it uses less digits than its factorization.

195166020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66409 (or 66400 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 195166020 is about 13970.1832486192. The cubic root of 195166020 is about 580.0535226073.

The spelling of 195166020 in words is "one hundred ninety-five million, one hundred sixty-six thousand, twenty".