1626141661663 has 2 divisors, whose sum is σ = 1626141661664. Its totient is φ = 1626141661662.

The previous prime is 1626141661583. The next prime is 1626141661667. The reversal of 1626141661663 is 3661661416261.

It is a strong prime.

It is an emirp because it is prime and its reverse (3661661416261) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1626141661663 is a prime.

It is a super-2 number, since 2×1626141661663² (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 (1626141661667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813070830831 + 813070830832.

It is an arithmetic number, because the mean of its divisors is an integer number (813070830832).

Almost surely, 2^{1626141661663} is an apocalyptic number.

1626141661663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1626141661663 is an equidigital number, since it uses as much as digits as its factorization.

1626141661663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The spelling of 1626141661663 in words is "one trillion, six hundred twenty-six billion, one hundred forty-one million, six hundred sixty-one thousand, six hundred sixty-three".