126556434303066 has 16 divisors (see below), whose sum is σ = 281236520673600. Its totient is φ = 42185478101004.

The previous prime is 126556434303017. The next prime is 126556434303077. The reversal of 126556434303066 is 660303434655621.

126556434303066 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 564 + 3 + 43 + 0 + 30 + 6 + 6 = 666.

126556434303066 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 2343637672279 = 126556434303066 / (1 + 2 + 6 + 5 + 5 + 6 + 4 + 3 + 4 + 3 + 0 + 3 + 0 + 6 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171818836086 + ... + 1171818836193.

It is an arithmetic number, because the mean of its divisors is an integer number (17577282542100).

Almost surely, 2^{126556434303066} is an apocalyptic number.

126556434303066 is an abundant number, since it is smaller than the sum of its proper divisors (154680086370534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126556434303066 is a wasteful number, since it uses less digits than its factorization.

126556434303066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343637672290 (or 2343637672284 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 54.

Adding to 126556434303066 its reverse (660303434655621), we get a palindrome (786859868958687).

The spelling of 126556434303066 in words is "one hundred twenty-six trillion, five hundred fifty-six billion, four hundred thirty-four million, three hundred three thousand, sixty-six".