655236565012 has 12 divisors (see below), whose sum is σ = 1152667466496. Its totient is φ = 325903003160.

The previous prime is 655236565003. The next prime is 655236565031. The reversal of 655236565012 is 210565632556.

It is a happy number.

It is a super-2 number, since 2×655236565012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428818978 + ... + 428820505.

It is an arithmetic number, because the mean of its divisors is an integer number (96055622208).

Almost surely, 2^655236565012 is an apocalyptic number.

It is an amenable number.

655236565012 is a deficient number, since it is larger than the sum of its proper divisors (497430901484).

655236565012 is a wasteful number, since it uses less digits than its factorization.

655236565012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857639678 (or 857639676 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 655236565012 in words is "six hundred fifty-five billion, two hundred thirty-six million, five hundred sixty-five thousand, twelve".