655220261570 has 32 divisors (see below), whose sum is σ = 1391361739776. Its totient is φ = 217400270400.

The previous prime is 655220261569. The next prime is 655220261581. The reversal of 655220261570 is 75162022556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150970241 + ... + 150974580.

It is an arithmetic number, because the mean of its divisors is an integer number (43480054368).

Almost surely, 2^655220261570 is an apocalyptic number.

655220261570 is an abundant number, since it is smaller than the sum of its proper divisors (736141478206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655220261570 is a wasteful number, since it uses less digits than its factorization.

655220261570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301944866.

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 655220261570 in words is "six hundred fifty-five billion, two hundred twenty million, two hundred sixty-one thousand, five hundred seventy".