125126541646 has 8 divisors (see below), whose sum is σ = 190065633120. Its totient is φ = 61771330608.

The previous prime is 125126541623. The next prime is 125126541691. The reversal of 125126541646 is 646145621521.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 395969911 + ... + 395970226.

It is an arithmetic number, because the mean of its divisors is an integer number (23758204140).

Almost surely, 2^125126541646 is an apocalyptic number.

125126541646 is a deficient number, since it is larger than the sum of its proper divisors (64939091474).

125126541646 is an equidigital number, since it uses as much as digits as its factorization.

125126541646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791940218.

The product of its digits is 345600, while the sum is 43.

The spelling of 125126541646 in words is "one hundred twenty-five billion, one hundred twenty-six million, five hundred forty-one thousand, six hundred forty-six".