655695531208 has 32 divisors (see below), whose sum is σ = 1235338997760. Its totient is φ = 326275551360.

The previous prime is 655695531121. The next prime is 655695531229. The reversal of 655695531208 is 802135596556.

It is a happy number.

It is a super-2 number, since 2×655695531208² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166113 + ... + 1634383.

It is an arithmetic number, because the mean of its divisors is an integer number (38604343680).

Almost surely, 2^655695531208 is an apocalyptic number.

It is an amenable number.

655695531208 is a deficient number, since it is larger than the sum of its proper divisors (579643466552).

655695531208 is a wasteful number, since it uses less digits than its factorization.

655695531208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469117 (or 469113 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 55.

The spelling of 655695531208 in words is "six hundred fifty-five billion, six hundred ninety-five million, five hundred thirty-one thousand, two hundred eight".