197224168645 has 32 divisors (see below), whose sum is σ = 287304634368. Its totient is φ = 126877390848.

The previous prime is 197224168601. The next prime is 197224168697. The reversal of 197224168645 is 546861422791.

It is a cyclic number.

It is not a de Polignac number, because 197224168645 - 2²³ = 197215780037 is a prime.

It is a super-2 number, since 2×197224168645² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343269 + ... + 715738.

It is an arithmetic number, because the mean of its divisors is an integer number (8978269824).

Almost surely, 2^197224168645 is an apocalyptic number.

It is an amenable number.

197224168645 is a deficient number, since it is larger than the sum of its proper divisors (90080465723).

197224168645 is a wasteful number, since it uses less digits than its factorization.

197224168645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059349.

The product of its digits is 5806080, while the sum is 55.

The spelling of 197224168645 in words is "one hundred ninety-seven billion, two hundred twenty-four million, one hundred sixty-eight thousand, six hundred forty-five".