16351481017 has 4 divisors (see below), whose sum is σ = 16915325220. Its totient is φ = 15787636816.

The previous prime is 16351480961. The next prime is 16351481033. The reversal of 16351481017 is 71018415361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71018415361 = 36383 ⋅1951967.

It can be written as a sum of positive squares in 2 ways, for example, as 3472862761 + 12878618256 = 58931^2 + 113484^2 .

It is a cyclic number.

It is not a de Polignac number, because 16351481017 - 2¹⁹ = 16350956729 is a prime.

It is a super-2 number, since 2×16351481017² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16351481917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281922058 + ... + 281922115.

It is an arithmetic number, because the mean of its divisors is an integer number (4228831305).

Almost surely, 2^16351481017 is an apocalyptic number.

It is an amenable number.

16351481017 is a deficient number, since it is larger than the sum of its proper divisors (563844203).

16351481017 is an equidigital number, since it uses as much as digits as its factorization.

16351481017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563844202.

The product of its (nonzero) digits is 20160, while the sum is 37.

Adding to 16351481017 its reverse (71018415361), we get a palindrome (87369896378).

The spelling of 16351481017 in words is "sixteen billion, three hundred fifty-one million, four hundred eighty-one thousand, seventeen".