125555343066 has 24 divisors (see below), whose sum is σ = 277824590784. Its totient is φ = 40961317320.

The previous prime is 125555342951. The next prime is 125555343071. The reversal of 125555343066 is 660343555521.

125555343066 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 553 + 4 + 30 + 66 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74204440 + ... + 74206131.

It is an arithmetic number, because the mean of its divisors is an integer number (11576024616).

Almost surely, 2^125555343066 is an apocalyptic number.

125555343066 is an abundant number, since it is smaller than the sum of its proper divisors (152269247718).

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

125555343066 is a wasteful number, since it uses less digits than its factorization.

125555343066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148410626 (or 148410623 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

Adding to 125555343066 its reverse (660343555521), we get a palindrome (785898898587).

The spelling of 125555343066 in words is "one hundred twenty-five billion, five hundred fifty-five million, three hundred forty-three thousand, sixty-six".