125527418266 has 4 divisors (see below), whose sum is σ = 188291127402. Its totient is φ = 62763709132.

The previous prime is 125527418257. The next prime is 125527418273. The reversal of 125527418266 is 662814725521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662814725521 = 13 ⋅50985748117.

It can be written as a sum of positive squares in only one way, i.e., 116441325225 + 9086093041 = 341235^2 + 95321^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31381854565 + ... + 31381854568.

Almost surely, 2^125527418266 is an apocalyptic number.

125527418266 is a deficient number, since it is larger than the sum of its proper divisors (62763709136).

125527418266 is an equidigital number, since it uses as much as digits as its factorization.

125527418266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62763709135.

The product of its digits is 1612800, while the sum is 49.

The spelling of 125527418266 in words is "one hundred twenty-five billion, five hundred twenty-seven million, four hundred eighteen thousand, two hundred sixty-six".