197495988560 has 80 divisors (see below), whose sum is σ = 495077479680. Its totient is φ = 72836375040.

The previous prime is 197495988559. The next prime is 197495988601. The reversal of 197495988560 is 65889594791.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782825 + ... + 1003895.

It is an arithmetic number, because the mean of its divisors is an integer number (6188468496).

Almost surely, 2^197495988560 is an apocalyptic number.

197495988560 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 197495988560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247538739840).

197495988560 is an abundant number, since it is smaller than the sum of its proper divisors (297581491120).

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

197495988560 is a wasteful number, since it uses less digits than its factorization.

197495988560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221956 (or 221950 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 71.

The spelling of 197495988560 in words is "one hundred ninety-seven billion, four hundred ninety-five million, nine hundred eighty-eight thousand, five hundred sixty".