197553735055161 has 45 divisors (see below), whose sum is σ = 296133754151829. Its totient is φ = 131247686018376.

The previous prime is 197553735055151. The next prime is 197553735055163. The reversal of 197553735055161 is 161550537355791.

The square root of 197553735055161 is 14055381.

It is a perfect power (a square), and thus also a powerful number.

197553735055161 is a `hidden beast` number, since 1 + 9 + 7 + 5 + 5 + 3 + 73 + 5 + 0 + 551 + 6 + 1 = 666.

It is not a de Polignac number, because 197553735055161 - 2¹⁷ = 197553734924089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197553735055163) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 38835015160 + ... + 38835020246.

Almost surely, 2^{197553735055161} is an apocalyptic number.

197553735055161 is the 14055381-st square number.

197553735055161 is the 7027691-st centered octagonal number.

It is an amenable number.

197553735055161 is a deficient number, since it is larger than the sum of its proper divisors (98580019096668).

197553735055161 is an frugal number, since it uses more digits than its factorization.

197553735055161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10800 (or 5397 counting only the distinct ones).

The product of its (nonzero) digits is 74418750, while the sum is 63.

The spelling of 197553735055161 in words is "one hundred ninety-seven trillion, five hundred fifty-three billion, seven hundred thirty-five million, fifty-five thousand, one hundred sixty-one".