1616720487467 has 2 divisors, whose sum is σ = 1616720487468. Its totient is φ = 1616720487466.

The previous prime is 1616720487457. The next prime is 1616720487493. The reversal of 1616720487467 is 7647840276161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1616720487467 - 2¹⁰ = 1616720486443 is a prime.

It is a super-2 number, since 2×1616720487467² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616720487407) 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, 808360243733 + 808360243734.

It is an arithmetic number, because the mean of its divisors is an integer number (808360243734).

Almost surely, 2^{1616720487467} is an apocalyptic number.

1616720487467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616720487467 is an equidigital number, since it uses as much as digits as its factorization.

1616720487467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18966528, while the sum is 59.

The spelling of 1616720487467 in words is "one trillion, six hundred sixteen billion, seven hundred twenty million, four hundred eighty-seven thousand, four hundred sixty-seven".