126576216369 has 12 divisors (see below), whose sum is σ = 182974832976. Its totient is φ = 84318365592.

The previous prime is 126576216331. The next prime is 126576216397. The reversal of 126576216369 is 963612675621.

126576216369 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 7 + 621 + 6 + 3 + 6 + 9 = 666.

It is not a de Polignac number, because 126576216369 - 2¹⁷ = 126576085297 is a prime.

It is a super-2 number, since 2×126576216369² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (126576206369) 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 11 ways as a sum of consecutive naturals, for example, 5469367 + ... + 5492460.

It is an arithmetic number, because the mean of its divisors is an integer number (15247902748).

Almost surely, 2^126576216369 is an apocalyptic number.

It is an amenable number.

126576216369 is a deficient number, since it is larger than the sum of its proper divisors (56398616607).

126576216369 is a wasteful number, since it uses less digits than its factorization.

126576216369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10963116 (or 10963113 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 126576216369 in words is "one hundred twenty-six billion, five hundred seventy-six million, two hundred sixteen thousand, three hundred sixty-nine".