126650726072 has 64 divisors (see below), whose sum is σ = 269490564000. Its totient is φ = 55317233664.

The previous prime is 126650726057. The next prime is 126650726113. The reversal of 126650726072 is 270627056621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1801208 + ... + 1870200.

Almost surely, 2^126650726072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126650726072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134745282000).

126650726072 is an abundant number, since it is smaller than the sum of its proper divisors (142839837928).

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

126650726072 is a wasteful number, since it uses less digits than its factorization.

126650726072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69960 (or 69956 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 126650726072 in words is "one hundred twenty-six billion, six hundred fifty million, seven hundred twenty-six thousand, seventy-two".