197006566 has 16 divisors (see below), whose sum is σ = 300234240. Its totient is φ = 96936840.

The previous prime is 197006549. The next prime is 197006567. The reversal of 197006566 is 665600791.

It is a super-2 number, since 2×197006566² = 77623174094224712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197006567) 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, 50415 + ... + 54181.

It is an arithmetic number, because the mean of its divisors is an integer number (18764640).

Almost surely, 2^197006566 is an apocalyptic number.

197006566 is a deficient number, since it is larger than the sum of its proper divisors (103227674).

197006566 is a wasteful number, since it uses less digits than its factorization.

197006566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 197006566 is about 14035.9027497343. The cubic root of 197006566 is about 581.8712511858.

The spelling of 197006566 in words is "one hundred ninety-seven million, six thousand, five hundred sixty-six".