197551116 has 192 divisors, whose sum is σ = 615014400. Its totient is φ = 53669952.

The previous prime is 197551111. The next prime is 197551121. The reversal of 197551116 is 611155791.

197551116 is a `hidden beast` number, since 1 + 97 + 551 + 1 + 16 = 666.

197551116 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197551111) and next prime (197551121).

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (9450) is a multiple of the sum of its prime factors (225).

It is not an unprimeable number, because it can be changed into a prime (197551111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1917921 + ... + 1918023.

It is an arithmetic number, because the mean of its divisors is an integer number (3203200).

Almost surely, 2^197551116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197551116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307507200).

197551116 is an abundant number, since it is smaller than the sum of its proper divisors (417463284).

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

197551116 is a wasteful number, since it uses less digits than its factorization.

197551116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 217 counting only the distinct ones).

The product of its digits is 9450, while the sum is 36.

The square root of 197551116 is about 14055.2878305640. The cubic root of 197551116 is about 582.4068788371.

The spelling of 197551116 in words is "one hundred ninety-seven million, five hundred fifty-one thousand, one hundred sixteen".