126507561200 has 30 divisors (see below), whose sum is σ = 303934416744. Its totient is φ = 50603024320.

The previous prime is 126507561197. The next prime is 126507561217. The reversal of 126507561200 is 2165705621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158134052 + ... + 158134851.

Almost surely, 2^126507561200 is an apocalyptic number.

126507561200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126507561200 is an abundant number, since it is smaller than the sum of its proper divisors (177426855544).

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

126507561200 is a wasteful number, since it uses less digits than its factorization.

126507561200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316268921 (or 316268910 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 126507561200 in words is "one hundred twenty-six billion, five hundred seven million, five hundred sixty-one thousand, two hundred".