1652616620663 has 2 divisors, whose sum is σ = 1652616620664. Its totient is φ = 1652616620662.

The previous prime is 1652616620659. The next prime is 1652616620791. The reversal of 1652616620663 is 3660266162561.

It is a weak prime.

It is an emirp because it is prime and its reverse (3660266162561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1652616620663 - 2² = 1652616620659 is a prime.

It is a super-2 number, since 2×1652616620663² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1652616620363) 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, 826308310331 + 826308310332.

It is an arithmetic number, because the mean of its divisors is an integer number (826308310332).

Almost surely, 2^{1652616620663} is an apocalyptic number.

1652616620663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1652616620663 is an equidigital number, since it uses as much as digits as its factorization.

1652616620663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 1652616620663 in words is "one trillion, six hundred fifty-two billion, six hundred sixteen million, six hundred twenty thousand, six hundred sixty-three".