126444522135501 has 16 divisors (see below), whose sum is σ = 187333338411520. Its totient is φ = 84292693895520.

The previous prime is 126444522135499. The next prime is 126444522135517. The reversal of 126444522135501 is 105531225444621.

126444522135501 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 4 + 4 + 5 + 2 + 2 + 135 + 501 = 666.

It is not a de Polignac number, because 126444522135501 - 2¹ = 126444522135499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126444522135101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100870960 + ... + 102116793.

It is an arithmetic number, because the mean of its divisors is an integer number (11708333650720).

Almost surely, 2^{126444522135501} is an apocalyptic number.

It is an amenable number.

126444522135501 is a deficient number, since it is larger than the sum of its proper divisors (60888816276019).

126444522135501 is a wasteful number, since it uses less digits than its factorization.

126444522135501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203010833 (or 203010827 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 126444522135501 in words is "one hundred twenty-six trillion, four hundred forty-four billion, five hundred twenty-two million, one hundred thirty-five thousand, five hundred one".