655343556 has 48 divisors (see below), whose sum is σ = 1794823296. Its totient is φ = 182179584.

The previous prime is 655343551. The next prime is 655343587.

655343556 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (655343551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102321 + ... + 108536.

It is an arithmetic number, because the mean of its divisors is an integer number (37392152).

Almost surely, 2^655343556 is an apocalyptic number.

It is an amenable number.

655343556 is an abundant number, since it is smaller than the sum of its proper divisors (1139479740).

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

655343556 is a wasteful number, since it uses less digits than its factorization.

655343556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210908 (or 210906 counting only the distinct ones).

The product of its digits is 810000, while the sum is 42.

The square root of 655343556 is about 25599.6788261103. The cubic root of 655343556 is about 868.6063722946.

The spelling of 655343556 in words is "six hundred fifty-five million, three hundred forty-three thousand, five hundred fifty-six".