125636338336 has 12 divisors (see below), whose sum is σ = 247346541162. Its totient is φ = 62818169152.

The previous prime is 125636338327. The next prime is 125636338337. The reversal of 125636338336 is 633833636521.

It can be written as a sum of positive squares in only one way, i.e., 100081118736 + 25555219600 = 316356^2 + 159860^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125636338336.

It is not an unprimeable number, because it can be changed into a prime (125636338337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1963067755 + ... + 1963067818.

Almost surely, 2^125636338336 is an apocalyptic number.

125636338336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125636338336 is a deficient number, since it is larger than the sum of its proper divisors (121710202826).

125636338336 is an equidigital number, since it uses as much as digits as its factorization.

125636338336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926135583 (or 3926135575 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 49.

The spelling of 125636338336 in words is "one hundred twenty-five billion, six hundred thirty-six million, three hundred thirty-eight thousand, three hundred thirty-six".