125652777266 has 4 divisors (see below), whose sum is σ = 188479165902. Its totient is φ = 62826388632.

The previous prime is 125652777253. The next prime is 125652777301. The reversal of 125652777266 is 662777256521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662777256521 = 4603 ⋅143988107.

It can be written as a sum of positive squares in only one way, i.e., 66372701641 + 59280075625 = 257629^2 + 243475^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31413194315 + ... + 31413194318.

Almost surely, 2^125652777266 is an apocalyptic number.

125652777266 is a deficient number, since it is larger than the sum of its proper divisors (62826388636).

125652777266 is an equidigital number, since it uses as much as digits as its factorization.

125652777266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62826388635.

The product of its digits is 14817600, while the sum is 56.

The spelling of 125652777266 in words is "one hundred twenty-five billion, six hundred fifty-two million, seven hundred seventy-seven thousand, two hundred sixty-six".