197308080261 has 12 divisors (see below), whose sum is σ = 285043165888. Its totient is φ = 131519056104.

The previous prime is 197308080239. The next prime is 197308080289. The reversal of 197308080261 is 162080803791.

197308080261 is a `hidden beast` number, since 1 + 9 + 7 + 308 + 0 + 80 + 261 = 666.

It is not a de Polignac number, because 197308080261 - 2⁶ = 197308080197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197308080161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1574995 + ... + 1695648.

Almost surely, 2^197308080261 is an apocalyptic number.

It is an amenable number.

197308080261 is a deficient number, since it is larger than the sum of its proper divisors (87735085627).

197308080261 is a wasteful number, since it uses less digits than its factorization.

197308080261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277352 (or 3277349 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 197308080261 in words is "one hundred ninety-seven billion, three hundred eight million, eighty thousand, two hundred sixty-one".