125310558666628 has 12 divisors (see below), whose sum is σ = 219298139747932. Its totient is φ = 62653947310080.

The previous prime is 125310558666577. The next prime is 125310558666653. The reversal of 125310558666628 is 826666855013521.

It can be written as a sum of positive squares in 2 ways, for example, as 69534784917504 + 55775773749124 = 8338752^2 + 7468318^2 .

It is a super-2 number, since 2×125310558666628² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125310558666628.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332794125 + ... + 333170452.

Almost surely, 2^{125310558666628} is an apocalyptic number.

It is an amenable number.

125310558666628 is a deficient number, since it is larger than the sum of its proper divisors (93987581081304).

125310558666628 is a wasteful number, since it uses less digits than its factorization.

125310558666628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666011622 (or 666011620 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 64.

The spelling of 125310558666628 in words is "one hundred twenty-five trillion, three hundred ten billion, five hundred fifty-eight million, six hundred sixty-six thousand, six hundred twenty-eight".