125312134166 has 4 divisors (see below), whose sum is σ = 187968201252. Its totient is φ = 62656067082.

The previous prime is 125312134151. The next prime is 125312134193. The reversal of 125312134166 is 661431213521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31328033540 + ... + 31328033543.

It is an arithmetic number, because the mean of its divisors is an integer number (46992050313).

Almost surely, 2^125312134166 is an apocalyptic number.

125312134166 is a deficient number, since it is larger than the sum of its proper divisors (62656067086).

125312134166 is an equidigital number, since it uses as much as digits as its factorization.

125312134166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62656067085.

The product of its digits is 25920, while the sum is 35.

Adding to 125312134166 its reverse (661431213521), we get a palindrome (786743347687).

The spelling of 125312134166 in words is "one hundred twenty-five billion, three hundred twelve million, one hundred thirty-four thousand, one hundred sixty-six".