126256165453 has 16 divisors (see below), whose sum is σ = 140395597056. Its totient is φ = 112562274240.

The previous prime is 126256165447. The next prime is 126256165463. The reversal of 126256165453 is 354561652621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126256165453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126256165463) 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, 1285975 + ... + 1380667.

It is an arithmetic number, because the mean of its divisors is an integer number (8774724816).

Almost surely, 2^126256165453 is an apocalyptic number.

It is an amenable number.

126256165453 is a deficient number, since it is larger than the sum of its proper divisors (14139431603).

126256165453 is a wasteful number, since it uses less digits than its factorization.

126256165453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97044.

The product of its digits is 1296000, while the sum is 46.

The spelling of 126256165453 in words is "one hundred twenty-six billion, two hundred fifty-six million, one hundred sixty-five thousand, four hundred fifty-three".