16351662469 has 2 divisors, whose sum is σ = 16351662470. Its totient is φ = 16351662468.

The previous prime is 16351662433. The next prime is 16351662479. The reversal of 16351662469 is 96426615361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10505225025 + 5846437444 = 102495^2 + 76462^2 .

It is a cyclic number.

It is not a de Polignac number, because 16351662469 - 2³³ = 7761727877 is a prime.

It is a super-2 number, since 2×16351662469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16351662479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8175831234 + 8175831235.

It is an arithmetic number, because the mean of its divisors is an integer number (8175831235).

Almost surely, 2^16351662469 is an apocalyptic number.

It is an amenable number.

16351662469 is a deficient number, since it is larger than the sum of its proper divisors (1).

16351662469 is an equidigital number, since it uses as much as digits as its factorization.

16351662469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The spelling of 16351662469 in words is "sixteen billion, three hundred fifty-one million, six hundred sixty-two thousand, four hundred sixty-nine".