195651580 has 12 divisors (see below), whose sum is σ = 410868360. Its totient is φ = 78260624.

The previous prime is 195651563. The next prime is 195651581. The reversal of 195651580 is 85156591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195651581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4891270 + ... + 4891309.

It is an arithmetic number, because the mean of its divisors is an integer number (34239030).

Almost surely, 2^195651580 is an apocalyptic number.

195651580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195651580 is an abundant number, since it is smaller than the sum of its proper divisors (215216780).

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

195651580 is a wasteful number, since it uses less digits than its factorization.

195651580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782588 (or 9782586 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 40.

The square root of 195651580 is about 13987.5508935625. The cubic root of 195651580 is about 580.5341690072.

The spelling of 195651580 in words is "one hundred ninety-five million, six hundred fifty-one thousand, five hundred eighty".