126556800254 has 64 divisors (see below), whose sum is σ = 205754359680. Its totient is φ = 58167152640.

The previous prime is 126556800247. The next prime is 126556800259. The reversal of 126556800254 is 452008655621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126556800259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154149164 + ... + 154149984.

It is an arithmetic number, because the mean of its divisors is an integer number (3214911870).

Almost surely, 2^126556800254 is an apocalyptic number.

126556800254 is a deficient number, since it is larger than the sum of its proper divisors (79197559426).

126556800254 is a wasteful number, since it uses less digits than its factorization.

126556800254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 126556800254 in words is "one hundred twenty-six billion, five hundred fifty-six million, eight hundred thousand, two hundred fifty-four".