125404164266 has 16 divisors (see below), whose sum is σ = 188765009928. Its totient is φ = 62482617600.

The previous prime is 125404164257. The next prime is 125404164311. The reversal of 125404164266 is 662461404521.

It can be written as a sum of positive squares in 4 ways, for example, as 15210042241 + 110194122025 = 123329^2 + 331955^2 .

It is a super-2 number, since 2×125404164266² (a number of 23 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 2137646 + ... + 2195526.

Almost surely, 2^125404164266 is an apocalyptic number.

125404164266 is a deficient number, since it is larger than the sum of its proper divisors (63360845662).

125404164266 is a wasteful number, since it uses less digits than its factorization.

125404164266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61657.

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 125404164266 its reverse (662461404521), we get a palindrome (787865568787).

The spelling of 125404164266 in words is "one hundred twenty-five billion, four hundred four million, one hundred sixty-four thousand, two hundred sixty-six".