655121170 has 16 divisors (see below), whose sum is σ = 1286419968. Its totient is φ = 238225840.

The previous prime is 655121153. The next prime is 655121179. The reversal of 655121170 is 71121556.

It is not an unprimeable number, because it can be changed into a prime (655121179) 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 7 ways as a sum of consecutive naturals, for example, 2977714 + ... + 2977933.

It is an arithmetic number, because the mean of its divisors is an integer number (80401248).

Almost surely, 2^655121170 is an apocalyptic number.

655121170 is a deficient number, since it is larger than the sum of its proper divisors (631298798).

655121170 is a wasteful number, since it uses less digits than its factorization.

655121170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955665.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 655121170 is about 25595.3349265057. The cubic root of 655121170 is about 868.5081094579.

The spelling of 655121170 in words is "six hundred fifty-five million, one hundred twenty-one thousand, one hundred seventy".