125200165305 has 16 divisors (see below), whose sum is σ = 200447167680. Its totient is φ = 66731120448.

The previous prime is 125200165303. The next prime is 125200165309. The reversal of 125200165305 is 503561002521.

It is a happy number.

It is not a de Polignac number, because 125200165305 - 2¹ = 125200165303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125200165303) by changing a digit.

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, 2619342 + ... + 2666711.

It is an arithmetic number, because the mean of its divisors is an integer number (12527947980).

Almost surely, 2^125200165305 is an apocalyptic number.

125200165305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125200165305 is a deficient number, since it is larger than the sum of its proper divisors (75247002375).

125200165305 is a wasteful number, since it uses less digits than its factorization.

125200165305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287640.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 125200165305 its reverse (503561002521), we get a palindrome (628761167826).

The spelling of 125200165305 in words is "one hundred twenty-five billion, two hundred million, one hundred sixty-five thousand, three hundred five".