126052651563 has 4 divisors (see below), whose sum is σ = 168070202088. Its totient is φ = 84035101040.

The previous prime is 126052651531. The next prime is 126052651573. The reversal of 126052651563 is 365156250621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126052651563 - 2⁵ = 126052651531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126052651513) 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 3 ways as a sum of consecutive naturals, for example, 21008775258 + ... + 21008775263.

It is an arithmetic number, because the mean of its divisors is an integer number (42017550522).

Almost surely, 2^126052651563 is an apocalyptic number.

126052651563 is a deficient number, since it is larger than the sum of its proper divisors (42017550525).

126052651563 is an equidigital number, since it uses as much as digits as its factorization.

126052651563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42017550524.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 126052651563 in words is "one hundred twenty-six billion, fifty-two million, six hundred fifty-one thousand, five hundred sixty-three".