655871178556 has 48 divisors (see below), whose sum is σ = 1277460559872. Its totient is φ = 292135852800.

The previous prime is 655871178551. The next prime is 655871178559.

655871178556 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655871178551) 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, 19341 + ... + 1145476.

It is an arithmetic number, because the mean of its divisors is an integer number (26613761664).

Almost surely, 2^655871178556 is an apocalyptic number.

It is an amenable number.

655871178556 is a deficient number, since it is larger than the sum of its proper divisors (621589381316).

655871178556 is a wasteful number, since it uses less digits than its factorization.

655871178556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165090 (or 1165088 counting only the distinct ones).

The product of its digits is 70560000, while the sum is 64.

The spelling of 655871178556 in words is "six hundred fifty-five billion, eight hundred seventy-one million, one hundred seventy-eight thousand, five hundred fifty-six".