125366045565 has 16 divisors (see below), whose sum is σ = 201153912768. Its totient is φ = 66672477696.

The previous prime is 125366045557. The next prime is 125366045587. The reversal of 125366045565 is 565540663521.

It is not a de Polignac number, because 125366045565 - 2³ = 125366045557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11832859 + ... + 11843448.

It is an arithmetic number, because the mean of its divisors is an integer number (12572119548).

Almost surely, 2^125366045565 is an apocalyptic number.

125366045565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125366045565 is a deficient number, since it is larger than the sum of its proper divisors (75787867203).

125366045565 is a wasteful number, since it uses less digits than its factorization.

125366045565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23676668.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 125366045565 in words is "one hundred twenty-five billion, three hundred sixty-six million, forty-five thousand, five hundred sixty-five".