1616670207563 has 2 divisors, whose sum is σ = 1616670207564. Its totient is φ = 1616670207562.

The previous prime is 1616670207557. The next prime is 1616670207583. The reversal of 1616670207563 is 3657020766161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1616670207563 - 2²⁴ = 1616653430347 is a prime.

It is a super-2 number, since 2×1616670207563² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616670207583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808335103781 + 808335103782.

It is an arithmetic number, because the mean of its divisors is an integer number (808335103782).

Almost surely, 2^{1616670207563} is an apocalyptic number.

1616670207563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616670207563 is an equidigital number, since it uses as much as digits as its factorization.

1616670207563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 1616670207563 in words is "one trillion, six hundred sixteen billion, six hundred seventy million, two hundred seven thousand, five hundred sixty-three".