125125220346 has 32 divisors (see below), whose sum is σ = 286015121280. Its totient is φ = 35748235776.

The previous prime is 125125220323. The next prime is 125125220419. The reversal of 125125220346 is 643022521521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903790 + ... + 1032998.

It is an arithmetic number, because the mean of its divisors is an integer number (8937972540).

Almost surely, 2^125125220346 is an apocalyptic number.

125125220346 is an abundant number, since it is smaller than the sum of its proper divisors (160889900934).

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

125125220346 is a wasteful number, since it uses less digits than its factorization.

125125220346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152278.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 125125220346 its reverse (643022521521), we get a palindrome (768147741867).

The spelling of 125125220346 in words is "one hundred twenty-five billion, one hundred twenty-five million, two hundred twenty thousand, three hundred forty-six".