245623516511 has 2 divisors, whose sum is σ = 245623516512. Its totient is φ = 245623516510.

The previous prime is 245623516493. The next prime is 245623516517. The reversal of 245623516511 is 115615326542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245623516511 - 2⁶ = 245623516447 is a prime.

It is a super-2 number, since 2×245623516511² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245623516517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122811758255 + 122811758256.

It is an arithmetic number, because the mean of its divisors is an integer number (122811758256).

Almost surely, 2^245623516511 is an apocalyptic number.

245623516511 is a deficient number, since it is larger than the sum of its proper divisors (1).

245623516511 is an equidigital number, since it uses as much as digits as its factorization.

245623516511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 41.

The spelling of 245623516511 in words is "two hundred forty-five billion, six hundred twenty-three million, five hundred sixteen thousand, five hundred eleven".