260204215511 has 2 divisors, whose sum is σ = 260204215512. Its totient is φ = 260204215510.

The previous prime is 260204215489. The next prime is 260204215529. The reversal of 260204215511 is 115512402062.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260204215511 is a prime.

It is a super-2 number, since 2×260204215511² (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 (260204515511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130102107755 + 130102107756.

It is an arithmetic number, because the mean of its divisors is an integer number (130102107756).

Almost surely, 2^260204215511 is an apocalyptic number.

260204215511 is a deficient number, since it is larger than the sum of its proper divisors (1).

260204215511 is an equidigital number, since it uses as much as digits as its factorization.

260204215511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 260204215511 its reverse (115512402062), we get a palindrome (375716617573).

The spelling of 260204215511 in words is "two hundred sixty billion, two hundred four million, two hundred fifteen thousand, five hundred eleven".