655464660464 has 40 divisors (see below), whose sum is σ = 1277680217280. Its totient is φ = 325746489600.

The previous prime is 655464660457. The next prime is 655464660467. The reversal of 655464660464 is 464066464556.

It is a super-2 number, since 2×655464660464² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655464660467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645922 + ... + 2004990.

It is an arithmetic number, because the mean of its divisors is an integer number (31942005432).

Almost surely, 2^655464660464 is an apocalyptic number.

It is an amenable number.

655464660464 is a deficient number, since it is larger than the sum of its proper divisors (622215556816).

655464660464 is a wasteful number, since it uses less digits than its factorization.

655464660464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359769 (or 359763 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 56.

The spelling of 655464660464 in words is "six hundred fifty-five billion, four hundred sixty-four million, six hundred sixty thousand, four hundred sixty-four".