16465056457 has 2 divisors, whose sum is σ = 16465056458. Its totient is φ = 16465056456.

The previous prime is 16465056431. The next prime is 16465056469. The reversal of 16465056457 is 75465056461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13414040761 + 3051015696 = 115819^2 + 55236^2 .

It is a cyclic number.

It is not a de Polignac number, because 16465056457 - 2⁷ = 16465056329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16465056457.

It is not a weakly prime, because it can be changed into another prime (16465054457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232528228 + 8232528229.

It is an arithmetic number, because the mean of its divisors is an integer number (8232528229).

Almost surely, 2^16465056457 is an apocalyptic number.

It is an amenable number.

16465056457 is a deficient number, since it is larger than the sum of its proper divisors (1).

16465056457 is an equidigital number, since it uses as much as digits as its factorization.

16465056457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024000, while the sum is 49.

The spelling of 16465056457 in words is "sixteen billion, four hundred sixty-five million, fifty-six thousand, four hundred fifty-seven".