125321067656 has 16 divisors (see below), whose sum is σ = 245193393600. Its totient is φ = 59936162704.

The previous prime is 125321067637. The next prime is 125321067719. The reversal of 125321067656 is 656760123521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340546196 + ... + 340546563.

It is an arithmetic number, because the mean of its divisors is an integer number (15324587100).

Almost surely, 2^125321067656 is an apocalyptic number.

It is an amenable number.

125321067656 is a deficient number, since it is larger than the sum of its proper divisors (119872325944).

125321067656 is a wasteful number, since it uses less digits than its factorization.

125321067656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681092788 (or 681092784 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 125321067656 in words is "one hundred twenty-five billion, three hundred twenty-one million, sixty-seven thousand, six hundred fifty-six".