125740652066 has 16 divisors (see below), whose sum is σ = 195834810240. Its totient is φ = 60478382160.

The previous prime is 125740652053. The next prime is 125740652069. The reversal of 125740652066 is 660256047521.

It is not an unprimeable number, because it can be changed into a prime (125740652069) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3984176 + ... + 4015611.

It is an arithmetic number, because the mean of its divisors is an integer number (12239675640).

Almost surely, 2^125740652066 is an apocalyptic number.

125740652066 is a deficient number, since it is larger than the sum of its proper divisors (70094158174).

125740652066 is a wasteful number, since it uses less digits than its factorization.

125740652066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000089.

The product of its (nonzero) digits is 604800, while the sum is 44.

Adding to 125740652066 its reverse (660256047521), we get a palindrome (785996699587).

The spelling of 125740652066 in words is "one hundred twenty-five billion, seven hundred forty million, six hundred fifty-two thousand, sixty-six".