125166023603 has 2 divisors, whose sum is σ = 125166023604. Its totient is φ = 125166023602.

The previous prime is 125166023597. The next prime is 125166023651. The reversal of 125166023603 is 306320661521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125166023603 - 2²⁸ = 124897588147 is a prime.

It is not a weakly prime, because it can be changed into another prime (125166023693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62583011801 + 62583011802.

It is an arithmetic number, because the mean of its divisors is an integer number (62583011802).

Almost surely, 2^125166023603 is an apocalyptic number.

125166023603 is a deficient number, since it is larger than the sum of its proper divisors (1).

125166023603 is an equidigital number, since it uses as much as digits as its factorization.

125166023603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 125166023603 in words is "one hundred twenty-five billion, one hundred sixty-six million, twenty-three thousand, six hundred three".