197957110440 has 256 divisors, whose sum is σ = 617979248640. Its totient is φ = 50675328000.

The previous prime is 197957110423. The next prime is 197957110489. The reversal of 197957110440 is 44011759791.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 197957110440.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 459297025 + ... + 459297455.

It is an arithmetic number, because the mean of its divisors is an integer number (2413981440).

Almost surely, 2^197957110440 is an apocalyptic number.

197957110440 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 197957110440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308989624320).

197957110440 is an abundant number, since it is smaller than the sum of its proper divisors (420022138200).

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

197957110440 is a wasteful number, since it uses less digits than its factorization.

197957110440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 48.

The spelling of 197957110440 in words is "one hundred ninety-seven billion, nine hundred fifty-seven million, one hundred ten thousand, four hundred forty".