126345663501 has 16 divisors (see below), whose sum is σ = 178492708800. Its totient is φ = 79221328128.

The previous prime is 126345663473. The next prime is 126345663503. The reversal of 126345663501 is 105366543621.

It is not a de Polignac number, because 126345663501 - 2¹⁷ = 126345532429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126345663503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774586 + ... + 923403.

It is an arithmetic number, because the mean of its divisors is an integer number (11155794300).

Almost surely, 2^126345663501 is an apocalyptic number.

It is an amenable number.

126345663501 is a deficient number, since it is larger than the sum of its proper divisors (52147045299).

126345663501 is a wasteful number, since it uses less digits than its factorization.

126345663501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699468.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 126345663501 in words is "one hundred twenty-six billion, three hundred forty-five million, six hundred sixty-three thousand, five hundred one".