125955906765 has 16 divisors (see below), whose sum is σ = 217031716608. Its totient is φ = 62009061696.

The previous prime is 125955906761. The next prime is 125955906821. The reversal of 125955906765 is 567609559521.

It is not a de Polignac number, because 125955906765 - 2² = 125955906761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125955906699 and 125955906708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125955906761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322963669 + ... + 322964058.

It is an arithmetic number, because the mean of its divisors is an integer number (13564482288).

Almost surely, 2^125955906765 is an apocalyptic number.

125955906765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125955906765 is a deficient number, since it is larger than the sum of its proper divisors (91075809843).

125955906765 is a wasteful number, since it uses less digits than its factorization.

125955906765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645927748.

The product of its (nonzero) digits is 25515000, while the sum is 60.

The spelling of 125955906765 in words is "one hundred twenty-five billion, nine hundred fifty-five million, nine hundred six thousand, seven hundred sixty-five".