197545220936 has 32 divisors (see below), whose sum is σ = 428067504000. Its totient is φ = 83710974336.

The previous prime is 197545220933. The next prime is 197545220981. The reversal of 197545220936 is 639022545791.

It is a happy number.

It is a super-2 number, since 2×197545220936² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197545220933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19812956 + ... + 19822923.

It is an arithmetic number, because the mean of its divisors is an integer number (13377109500).

Almost surely, 2^197545220936 is an apocalyptic number.

It is an amenable number.

197545220936 is an abundant number, since it is smaller than the sum of its proper divisors (230522283064).

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

197545220936 is a wasteful number, since it uses less digits than its factorization.

197545220936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39635981 (or 39635977 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 197545220936 in words is "one hundred ninety-seven billion, five hundred forty-five million, two hundred twenty thousand, nine hundred thirty-six".