197045304661 has 8 divisors (see below), whose sum is σ = 202295690784. Its totient is φ = 191851679760.

The previous prime is 197045304647. The next prime is 197045304679. The reversal of 197045304661 is 166403540791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197045304661 - 2²¹ = 197043207509 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 (197045304161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14183271 + ... + 14197156.

It is an arithmetic number, because the mean of its divisors is an integer number (25286961348).

Almost surely, 2^197045304661 is an apocalyptic number.

It is an amenable number.

197045304661 is a deficient number, since it is larger than the sum of its proper divisors (5250386123).

197045304661 is a wasteful number, since it uses less digits than its factorization.

197045304661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28380611.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 197045304661 in words is "one hundred ninety-seven billion, forty-five million, three hundred four thousand, six hundred sixty-one".