125866222618 has 16 divisors (see below), whose sum is σ = 189323002944. Its totient is φ = 62758782720.

The previous prime is 125866222607. The next prime is 125866222631. The reversal of 125866222618 is 816222668521.

It is a super-2 number, since 2×125866222618² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1064371 + ... + 1176697.

It is an arithmetic number, because the mean of its divisors is an integer number (11832687684).

Almost surely, 2^125866222618 is an apocalyptic number.

125866222618 is a deficient number, since it is larger than the sum of its proper divisors (63456780326).

125866222618 is a wasteful number, since it uses less digits than its factorization.

125866222618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113877.

The product of its digits is 1105920, while the sum is 49.

The spelling of 125866222618 in words is "one hundred twenty-five billion, eight hundred sixty-six million, two hundred twenty-two thousand, six hundred eighteen".