126663456 has 24 divisors (see below), whose sum is σ = 332491824. Its totient is φ = 42221120.

The previous prime is 126663437. The next prime is 126663463. The reversal of 126663456 is 654366621.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659610 + ... + 659801.

It is an arithmetic number, because the mean of its divisors is an integer number (13853826).

Almost surely, 2^126663456 is an apocalyptic number.

126663456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

126663456 is an abundant number, since it is smaller than the sum of its proper divisors (205828368).

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

126663456 is a wasteful number, since it uses less digits than its factorization.

126663456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319424 (or 1319416 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 126663456 is about 11254.4860389091. The cubic root of 126663456 is about 502.2081749043.

The spelling of 126663456 in words is "one hundred twenty-six million, six hundred sixty-three thousand, four hundred fifty-six".