21160324652507 has 2 divisors, whose sum is σ = 21160324652508. Its totient is φ = 21160324652506.

The previous prime is 21160324652417. The next prime is 21160324652549. The reversal of 21160324652507 is 70525642306112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21160324652507 - 2³² = 21156029685211 is a prime.

It is not a weakly prime, because it can be changed into another prime (21160324654507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580162326253 + 10580162326254.

It is an arithmetic number, because the mean of its divisors is an integer number (10580162326254).

Almost surely, 2^{21160324652507} is an apocalyptic number.

21160324652507 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160324652507 is an equidigital number, since it uses as much as digits as its factorization.

21160324652507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 44.

Adding to 21160324652507 its reverse (70525642306112), we get a palindrome (91685966958619).

The spelling of 21160324652507 in words is "twenty-one trillion, one hundred sixty billion, three hundred twenty-four million, six hundred fifty-two thousand, five hundred seven".