126553664 has 28 divisors (see below), whose sum is σ = 251574300. Its totient is φ = 63164928.

The previous prime is 126553663. The next prime is 126553681. The reversal of 126553664 is 466355621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45697600 + 80856064 = 6760^2 + 8992^2 .

It is not an unprimeable number, because it can be changed into a prime (126553663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43982 + ... + 46770.

Almost surely, 2^126553664 is an apocalyptic number.

It is an amenable number.

126553664 is a deficient number, since it is larger than the sum of its proper divisors (125020636).

126553664 is an equidigital number, since it uses as much as digits as its factorization.

126553664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510 (or 3500 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 126553664 is about 11249.6072820343. The cubic root of 126553664 is about 502.0630281227.

The spelling of 126553664 in words is "one hundred twenty-six million, five hundred fifty-three thousand, six hundred sixty-four".