126638055154 has 32 divisors (see below), whose sum is σ = 226020170880. Its totient is φ = 52618444032.

The previous prime is 126638055127. The next prime is 126638055163. The reversal of 126638055154 is 451550836621.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6218344 + ... + 6238675.

It is an arithmetic number, because the mean of its divisors is an integer number (7063130340).

Almost surely, 2^126638055154 is an apocalyptic number.

126638055154 is a deficient number, since it is larger than the sum of its proper divisors (99382115726).

126638055154 is a wasteful number, since it uses less digits than its factorization.

126638055154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457074.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 126638055154 in words is "one hundred twenty-six billion, six hundred thirty-eight million, fifty-five thousand, one hundred fifty-four".