16626751337489 has 2 divisors, whose sum is σ = 16626751337490. Its totient is φ = 16626751337488.

The previous prime is 16626751337429. The next prime is 16626751337543. The reversal of 16626751337489 is 98473315762661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14060940043264 + 2565811294225 = 3749792^2 + 1601815^2 .

It is a cyclic number.

It is not a de Polignac number, because 16626751337489 - 2¹² = 16626751333393 is a prime.

It is not a weakly prime, because it can be changed into another prime (16626751337429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8313375668744 + 8313375668745.

It is an arithmetic number, because the mean of its divisors is an integer number (8313375668745).

Almost surely, 2^{16626751337489} is an apocalyptic number.

It is an amenable number.

16626751337489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16626751337489 is an equidigital number, since it uses as much as digits as its factorization.

16626751337489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274337280, while the sum is 68.

The spelling of 16626751337489 in words is "sixteen trillion, six hundred twenty-six billion, seven hundred fifty-one million, three hundred thirty-seven thousand, four hundred eighty-nine".