126335641564 has 12 divisors (see below), whose sum is σ = 241186224888. Its totient is φ = 57425291600.

The previous prime is 126335641561. The next prime is 126335641573. The reversal of 126335641564 is 465146533621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126335641561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435632247 + ... + 1435632334.

It is an arithmetic number, because the mean of its divisors is an integer number (20098852074).

Almost surely, 2^126335641564 is an apocalyptic number.

It is an amenable number.

126335641564 is a deficient number, since it is larger than the sum of its proper divisors (114850583324).

126335641564 is a wasteful number, since it uses less digits than its factorization.

126335641564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871264596 (or 2871264594 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

It can be divided in two parts, 1263356 and 41564, that added together give a triangular number (1304920 = T₁₆₁₅).

The spelling of 126335641564 in words is "one hundred twenty-six billion, three hundred thirty-five million, six hundred forty-one thousand, five hundred sixty-four".