126111172752 has 40 divisors (see below), whose sum is σ = 361985774880. Its totient is φ = 42037057440.

The previous prime is 126111172723. The next prime is 126111172801. The reversal of 126111172752 is 257271111621.

It is a happy number.

126111172752 is a `hidden beast` number, since 1 + 2 + 611 + 1 + 17 + 27 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 145961574 + ... + 145962437.

It is an arithmetic number, because the mean of its divisors is an integer number (9049644372).

Almost surely, 2^126111172752 is an apocalyptic number.

126111172752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126111172752 is an abundant number, since it is smaller than the sum of its proper divisors (235874602128).

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

126111172752 is a wasteful number, since it uses less digits than its factorization.

126111172752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291924028 (or 291924016 counting only the distinct ones).

The product of its digits is 11760, while the sum is 36.

The spelling of 126111172752 in words is "one hundred twenty-six billion, one hundred eleven million, one hundred seventy-two thousand, seven hundred fifty-two".