126621412144 has 40 divisors (see below), whose sum is σ = 252766500480. Its totient is φ = 61418193408.

The previous prime is 126621412117. The next prime is 126621412157. The reversal of 126621412144 is 441214126621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763392 + ... + 914335.

It is an arithmetic number, because the mean of its divisors is an integer number (6319162512).

Almost surely, 2^126621412144 is an apocalyptic number.

It is an amenable number.

126621412144 is a deficient number, since it is larger than the sum of its proper divisors (126145088336).

126621412144 is a wasteful number, since it uses less digits than its factorization.

126621412144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677877 (or 1677871 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

Adding to 126621412144 its reverse (441214126621), we get a palindrome (567835538765).

The spelling of 126621412144 in words is "one hundred twenty-six billion, six hundred twenty-one million, four hundred twelve thousand, one hundred forty-four".