125216061899 has 2 divisors, whose sum is σ = 125216061900. Its totient is φ = 125216061898.

The previous prime is 125216061871. The next prime is 125216061913. The reversal of 125216061899 is 998160612521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125216061899 - 2⁸ = 125216061643 is a prime.

It is not a weakly prime, because it can be changed into another prime (125216061199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62608030949 + 62608030950.

It is an arithmetic number, because the mean of its divisors is an integer number (62608030950).

Almost surely, 2^125216061899 is an apocalyptic number.

125216061899 is a deficient number, since it is larger than the sum of its proper divisors (1).

125216061899 is an equidigital number, since it uses as much as digits as its factorization.

125216061899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 125216061899 in words is "one hundred twenty-five billion, two hundred sixteen million, sixty-one thousand, eight hundred ninety-nine".