655145198 has 16 divisors (see below), whose sum is σ = 996300000. Its totient is φ = 323064192.

The previous prime is 655145159. The next prime is 655145221. The reversal of 655145198 is 891541556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68303 + ... + 77301.

It is an arithmetic number, because the mean of its divisors is an integer number (62268750).

Almost surely, 2^655145198 is an apocalyptic number.

655145198 is a deficient number, since it is larger than the sum of its proper divisors (341154802).

655145198 is a wasteful number, since it uses less digits than its factorization.

655145198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9499.

The product of its digits is 216000, while the sum is 44.

The square root of 655145198 is about 25595.8043046121. The cubic root of 655145198 is about 868.5187274721.

The spelling of 655145198 in words is "six hundred fifty-five million, one hundred forty-five thousand, one hundred ninety-eight".