197023745555 has 16 divisors (see below), whose sum is σ = 290988917184. Its totient is φ = 124709535360.

The previous prime is 197023745551. The next prime is 197023745557. The reversal of 197023745555 is 555547320791.

It is not a de Polignac number, because 197023745555 - 2² = 197023745551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197023745497 and 197023745506.

It is not an unprimeable number, because it can be changed into a prime (197023745551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216509156 + ... + 216510065.

It is an arithmetic number, because the mean of its divisors is an integer number (18186807324).

Almost surely, 2^197023745555 is an apocalyptic number.

197023745555 is a deficient number, since it is larger than the sum of its proper divisors (93965171629).

197023745555 is a wasteful number, since it uses less digits than its factorization.

197023745555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433019246.

The product of its (nonzero) digits is 6615000, while the sum is 53.

The spelling of 197023745555 in words is "one hundred ninety-seven billion, twenty-three million, seven hundred forty-five thousand, five hundred fifty-five".