16951053569 has 2 divisors, whose sum is σ = 16951053570. Its totient is φ = 16951053568.

The previous prime is 16951053551. The next prime is 16951053589. The reversal of 16951053569 is 96535015961.

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., 15193767169 + 1757286400 = 123263^2 + 41920^2 .

It is a cyclic number.

It is not a de Polignac number, because 16951053569 - 2²⁴ = 16934276353 is a prime.

It is a super-2 number, since 2×16951053569² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16951053589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8475526784 + 8475526785.

It is an arithmetic number, because the mean of its divisors is an integer number (8475526785).

Almost surely, 2^16951053569 is an apocalyptic number.

It is an amenable number.

16951053569 is a deficient number, since it is larger than the sum of its proper divisors (1).

16951053569 is an equidigital number, since it uses as much as digits as its factorization.

16951053569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1093500, while the sum is 50.

The spelling of 16951053569 in words is "sixteen billion, nine hundred fifty-one million, fifty-three thousand, five hundred sixty-nine".