16016214481 has 4 divisors (see below), whose sum is σ = 16174790964. Its totient is φ = 15857638000.

The previous prime is 16016214479. The next prime is 16016214499. The reversal of 16016214481 is 18441261061.

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: 18441261061 = 29017 ⋅635533.

It can be written as a sum of positive squares in 2 ways, for example, as 8405222400 + 7610992081 = 91680^2 + 87241^2 .

It is a cyclic number.

It is not a de Polignac number, because 16016214481 - 2¹ = 16016214479 is a prime.

It is a super-2 number, since 2×16016214481² (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 (16016214421) 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, 79288090 + ... + 79288291.

It is an arithmetic number, because the mean of its divisors is an integer number (4043697741).

Almost surely, 2^16016214481 is an apocalyptic number.

It is an amenable number.

16016214481 is a deficient number, since it is larger than the sum of its proper divisors (158576483).

16016214481 is a wasteful number, since it uses less digits than its factorization.

16016214481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158576482.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 16016214481 in words is "sixteen billion, sixteen million, two hundred fourteen thousand, four hundred eighty-one".