1651460663543 has 2 divisors, whose sum is σ = 1651460663544. Its totient is φ = 1651460663542.

The previous prime is 1651460663537. The next prime is 1651460663591. The reversal of 1651460663543 is 3453660641561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1651460663543 - 2²⁸ = 1651192228087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1651460663491 and 1651460663500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1651460663513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825730331771 + 825730331772.

It is an arithmetic number, because the mean of its divisors is an integer number (825730331772).

Almost surely, 2^{1651460663543} is an apocalyptic number.

1651460663543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1651460663543 is an equidigital number, since it uses as much as digits as its factorization.

1651460663543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 1651460663543 in words is "one trillion, six hundred fifty-one billion, four hundred sixty million, six hundred sixty-three thousand, five hundred forty-three".