126420665424 has 80 divisors (see below), whose sum is σ = 341670631680. Its totient is φ = 40237649920.

The previous prime is 126420665353. The next prime is 126420665429. The reversal of 126420665424 is 424566024621.

126420665424 is digitally balanced in base 3 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126420665429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590889 + ... + 775880.

It is an arithmetic number, because the mean of its divisors is an integer number (4270882896).

Almost surely, 2^126420665424 is an apocalyptic number.

It is an amenable number.

126420665424 is an abundant number, since it is smaller than the sum of its proper divisors (215249966256).

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

126420665424 is a wasteful number, since it uses less digits than its factorization.

126420665424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366868 (or 1366862 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 126420665424 in words is "one hundred twenty-six billion, four hundred twenty million, six hundred sixty-five thousand, four hundred twenty-four".