245616651529 has 2 divisors, whose sum is σ = 245616651530. Its totient is φ = 245616651528.

The previous prime is 245616651499. The next prime is 245616651551. The reversal of 245616651529 is 925156616542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179816706304 + 65799945225 = 424048^2 + 256515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245616651529 is a prime.

It is not a weakly prime, because it can be changed into another prime (245616651029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122808325764 + 122808325765.

It is an arithmetic number, because the mean of its divisors is an integer number (122808325765).

Almost surely, 2^245616651529 is an apocalyptic number.

It is an amenable number.

245616651529 is a deficient number, since it is larger than the sum of its proper divisors (1).

245616651529 is an equidigital number, since it uses as much as digits as its factorization.

245616651529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888000, while the sum is 52.

The spelling of 245616651529 in words is "two hundred forty-five billion, six hundred sixteen million, six hundred fifty-one thousand, five hundred twenty-nine".