125565560106 has 128 divisors (see below), whose sum is σ = 307157723136. Its totient is φ = 33404067840.

The previous prime is 125565560093. The next prime is 125565560149. The reversal of 125565560106 is 601065565521.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33015601 + ... + 33019403.

It is an arithmetic number, because the mean of its divisors is an integer number (2399669712).

Almost surely, 2^125565560106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125565560106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153578861568).

125565560106 is an abundant number, since it is smaller than the sum of its proper divisors (181592163030).

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

125565560106 is a wasteful number, since it uses less digits than its factorization.

125565560106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316.

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 125565560106 in words is "one hundred twenty-five billion, five hundred sixty-five million, five hundred sixty thousand, one hundred six".