16500070481 has 2 divisors, whose sum is σ = 16500070482. Its totient is φ = 16500070480.

The previous prime is 16500070427. The next prime is 16500070493. The reversal of 16500070481 is 18407000561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16381696081 + 118374400 = 127991^2 + 10880^2 .

It is a cyclic number.

It is not a de Polignac number, because 16500070481 - 2¹⁴ = 16500054097 is a prime.

It is a super-2 number, since 2×16500070481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16500070981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250035240 + 8250035241.

It is an arithmetic number, because the mean of its divisors is an integer number (8250035241).

Almost surely, 2^16500070481 is an apocalyptic number.

It is an amenable number.

16500070481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500070481 is an equidigital number, since it uses as much as digits as its factorization.

16500070481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 16500070481 in words is "sixteen billion, five hundred million, seventy thousand, four hundred eighty-one".