455666556 has 12 divisors (see below), whose sum is σ = 1063221992. Its totient is φ = 151888848.

The previous prime is 455666539. The next prime is 455666557. The reversal of 455666556 is 655666554.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×455666556² = 415264020513802272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455666557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18986095 + ... + 18986118.

Almost surely, 2^455666556 is an apocalyptic number.

It is an amenable number.

455666556 is an abundant number, since it is smaller than the sum of its proper divisors (607555436).

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

455666556 is a wasteful number, since it uses less digits than its factorization.

455666556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37972220 (or 37972218 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 48.

The square root of 455666556 is about 21346.3476032786. The cubic root of 455666556 is about 769.5125694531.

The spelling of 455666556 in words is "four hundred fifty-five million, six hundred sixty-six thousand, five hundred fifty-six".