126555403212 has 96 divisors (see below), whose sum is σ = 375098071040. Its totient is φ = 36147202560.

The previous prime is 126555403199. The next prime is 126555403283. The reversal of 126555403212 is 212304555621.

126555403212 is a `hidden beast` number, since 1 + 2 + 65 + 554 + 0 + 32 + 12 = 666.

126555403212 is digitally balanced in base 3, 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 (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2516013 + ... + 2565819.

Almost surely, 2^126555403212 is an apocalyptic number.

126555403212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126555403212 is an abundant number, since it is smaller than the sum of its proper divisors (248542667828).

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

126555403212 is a wasteful number, since it uses less digits than its factorization.

126555403212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53188 (or 53180 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 126555403212 its reverse (212304555621), we get a palindrome (338859958833).

The spelling of 126555403212 in words is "one hundred twenty-six billion, five hundred fifty-five million, four hundred three thousand, two hundred twelve".