11657465321 has 2 divisors, whose sum is σ = 11657465322. Its totient is φ = 11657465320.

The previous prime is 11657465317. The next prime is 11657465353. The reversal of 11657465321 is 12356475611.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7362498025 + 4294967296 = 85805^2 + 65536^2 .

It is a cyclic number.

It is not a de Polignac number, because 11657465321 - 2² = 11657465317 is a prime.

It is not a weakly prime, because it can be changed into another prime (11657465021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828732660 + 5828732661.

It is an arithmetic number, because the mean of its divisors is an integer number (5828732661).

Almost surely, 2^11657465321 is an apocalyptic number.

It is an amenable number.

11657465321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11657465321 is an equidigital number, since it uses as much as digits as its factorization.

11657465321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

The spelling of 11657465321 in words is "eleven billion, six hundred fifty-seven million, four hundred sixty-five thousand, three hundred twenty-one".