655700144 has 20 divisors (see below), whose sum is σ = 1385912040. Its totient is φ = 298045440.

The previous prime is 655700141. The next prime is 655700147. The reversal of 655700144 is 441007556.

It is an interprime number because it is at equal distance from previous prime (655700141) and next prime (655700147).

It is a self number, because there is not a number n which added to its sum of digits gives 655700144.

It is not an unprimeable number, because it can be changed into a prime (655700141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862609 + ... + 1862960.

It is an arithmetic number, because the mean of its divisors is an integer number (69295602).

Almost surely, 2^655700144 is an apocalyptic number.

It is an amenable number.

655700144 is an abundant number, since it is smaller than the sum of its proper divisors (730211896).

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

655700144 is a wasteful number, since it uses less digits than its factorization.

655700144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725588 (or 3725582 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 655700144 is about 25606.6425757068. The cubic root of 655700144 is about 868.7638868508.

The spelling of 655700144 in words is "six hundred fifty-five million, seven hundred thousand, one hundred forty-four".