655155650 has 48 divisors (see below), whose sum is σ = 1240233120. Its totient is φ = 257452800.

The previous prime is 655155593. The next prime is 655155653. The reversal of 655155650 is 56551556.

It is not an unprimeable number, because it can be changed into a prime (655155653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 743210 + ... + 744090.

It is an arithmetic number, because the mean of its divisors is an integer number (25838190).

Almost surely, 2^655155650 is an apocalyptic number.

655155650 is a deficient number, since it is larger than the sum of its proper divisors (585077470).

655155650 is a wasteful number, since it uses less digits than its factorization.

655155650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 655155650 is about 25596.0084778858. The cubic root of 655155650 is about 868.5233461477.

The spelling of 655155650 in words is "six hundred fifty-five million, one hundred fifty-five thousand, six hundred fifty".